By: Gregory Falco, Stanford University
Martin Eling, University of St. Gallen
Danielle Jablanski, Stanford University
Virginia Miller, Stanford University
Lawrence A. Gordon, University of Maryland
Shaun Shuxun Wang, Nanyang Technological University
Joan Schmit, University of Wisconsin-Madison
Russell Thomas, RMS and George Mason University
Mauro Elvedi, University of St. Gallen
Thomas Maillart, University of Geneva
Emy Donavan, Allianz
Simon Dejung, SCOR Reinsurance
Matthias Weber, SwissRE
Eric Durand, SwissRE
Franklin Nutter, Reinsurance Association of America
Uzi Scheffer, SOSA
Gil Arazi, FinTLV Ventures
Gilbert Ohana, FinTLV Ventures
Herb Lin, Stanford University
Cyber risk as a research topic has attracted considerable academic, industry and government attention over the past 15 years. Unfortunately, research progress has been modest and has not been sufficient to answer the “call to action” in many prestigious committee and agency reports. To date, industry and academic research on cyber risk in all its complexity has been piecemeal and uncoordinated – which is typical of emergent, pre-paradigmatic fields. Further complicating matters is the multidisciplinary characteristics of cyber risk. In order to significantly advance the pace of research progress, a group of scholars, industry practitioners and policymakers from around the world present a research agenda for cyber risk and cyber insurance, which accounts for the variety of fields relevant to the problem space. We propose a cyber risk unified concept model that identifies where certain disciplines of study can add value. The concept model can also be used to identify collaboration opportunities across the major research questions. In this agenda, we unpack the major research questions into manageable projects and tactical questions that need to be addressed.
In today’s digitally interconnected environment, every company is now a tech company. Every political entity is now a digitally-enabled one. Therefore, digital or “cyber” risk is business risk. While this may be a provocative statement to some, an irrefutable fact is that digital transformation is accompanied by new organizational exposure that needs to be managed accordingly. To date, efforts to evaluate the complexity of cyber risk have been piecemeal and uncoordinated – not unlike other emergent fields. This is wasting financial and intellectual capital, while also impeding new markets from flourishing (e.g. cyber insurance). The goal of this document is to propose a research agenda for cyber risk that aligns the interests of industry, academia, non-profits, and governments. To be successful, this agenda must resonate with all fields studying cyber risk including data science, behavioral science, economics, computer science, management science, political science, and law.
There are hundreds, if not thousands, of reports, white papers and academic articles that refer to cyber risk. Cyber risk is a multi-disciplinary issue, therefore ownership of cyber risk as a field of study has been decentralized across academic fields that seldom lack coordination. Our agenda’s focus is cyber risk management and cyber insurance for firms and similar organizations, individually and also in interdependent networks (e.g. supply and partner networks, critical infrastructure, etc.). This includes relevant government and non-profit organizations. We do not address cyber risk for individual people, nor do we address cyber risk for society at large, including international relations.
Because of the diverse audience for this research agenda, we conducted an extensive feedback exercise where we circulated this document with colleagues across the globe for each aforementioned field of study. The extensive collaborative process in formulating this agenda, in part reflected by the variety of coauthors, yielded a cyber risk intellectual space for each discipline. Representatives from each discipline provided detailed commentary on the proposed agenda and contributed what they believed to be the most relevant questions to their field. We asked that they categorize their questions in six categories derived from standard risk management process steps. Figure 1, which we call a Unified Concept Model for Cyber Risk, illustrates the categories relevant to each discipline based on their questions. We hope disciplines will be able to use Figure 1 and the subsequent agenda as a starting point for their cyber risk research, understand how their work fits into the broader cyber risk research landscape and determine which fields could collaborate on topics of shared interest. The authors acknowledge the imperfection of the process to designate topics by disciplines; however our intention is for this Unified Concept Model to evolve over time as more researchers join the conversation.
As part of our collaborative feedback process, we learned that each discipline believes that their field has the expertise to comprehensively address “cyber risk”. This is a function of the relatively narrow view each field has regarding the definition of the cyber risk problem set. For example, our statistician colleagues defined cyber risk as the study of modeling the likelihood of an attack, while political scientists defined it as the study of international security in the context of digital threats. We believe that each discipline’s views are valid, but that they must be contextualized in a bigger vision so that cyber risk can be systematically addressed as a research area unto its own right. The goal of this agenda is not to define cyber risk, but aims to illustrate the need for a broad definition and multi-disciplinary, collaborative approach to address cyber risk as a research field.
Figure 1 : Cyber Risk Unified Concept Model; outer ring displays 6 umbrella questions; inner ring shows potential collaborations on each overarching question between the 8 listed disciplines
The agenda elaborates on the six big questions identified by the co-authors in the Cyber Risk Unified Concept Model, proposes disciplines that could be well-equipped to study them, unpacks a variety of related, tactical research questions and provides sources as a starting point for each area of focus. These big questions are a variation of the standard five risk management process steps. The big questions include:
Primary Disciplines: Accounting, Computer Science, Law, Political Science
There is not one single type of cyber risk. Cyber risk could come in the form of unintentional data leakage, privacy loss, malicious attempts to damage digital systems, malicious attempts to steal or alter corporate confidential data for economic advantage or even as disinformation campaigns. The damage could be sporadic or a global damage that affects global digital assets (DDOS). There is an entire spectrum of cyber risk an organization can face ranging from unintentional data leaks to strategic, nation-state attacks. The scope of cyber risk has been difficult to characterize because there is widespread disagreement about what a cyber event actually entails. Some organizations consider a cyber event to be any unknown connection attempt to their network. Others consider successful unauthorized access to their network a cyber event. Still others define a cyber event as an instance when “loss” is experienced. Understandably, it is exceedingly difficult to benchmark security or risk across an industry or even within the same organization if everyone is using different definitions of an event. This issue is compounded by the varying definitions provided by standardization organizations such as NIST, ISO and MITRE.
For the purposes of establishing a cyber risk body of knowledge, it is vital to have clear and consistent terminology about cyber events and their impact potential. Disparate definitions of a cyber event will limit the ability for consistent reporting and data analysis about cyber risk. Further, it could complicate the ability for research studies to build on each other – one of the fundamental cornerstones of scientific progress.
Further complicating matters, the scale and scope of cyber risk is problematic depending on choice of boundary for data, computing systems, and stakeholders. Moving from narrow to broad, here are alternative scope statements for cyber risk:
Cyber risk is fundamentally different than other risks faced by businesses and covered by insurance (e.g. Property & Casualty, Errors & Omissions, etc.) in two ways.
First, the causal factors that drive cyber risk change and evolve rapidly – sometimes in less than a year, which is less than the insurance period for most cyber insurance policies. For a given firm, cyber risk can decrease within the insurance period because new security controls or resources have been successfully deployed, or vulnerabilities reduced, or the attack surface has been significantly reduced. But for that same firm cyber risk increase because attack surface increases, or security controls deteriorate, or new vulnerabilities appear, or because attacker tools and practices have evolved. Changing the IT landscape of an organization (new software used, new integration with suppliers, acquisition of additional companies /integration with such companies’ networks)) also increases the cyber risk during the insurance period.
Second, cyber activity does not usually follow clear patterns, which might help estimate the risk. For example, an advanced attacker who is specifically targeting individual organizations will never do the same thing twice. The barrier to modifying an attack is low and since skilled attackers do not want to risk being caught, they change approach. This often makes historical data of little use to assess a future risk.
Regarding cyber events, the time scope (duration) of cyber events and impact is problematic. Unlike perils like car accidents, earthquakes and others, a cyberattack even or episode can last for days, weeks, or months until it is recognized and stopped. Evaluation of the damages can also take long periods of time, since it is not always known what data was stolen and what uses are planned for the stolen information by the attackers. Cyberattacks can also proceed in stages, either by the same attackers or through other attackers with different resources or objectives, who acquire useful credentials or other data through “black hat” markets.
Regarding cyber loss (i.e. impact, damage), the losses could be sporadic and isolated or it could be global and widespread. It could include only tangible losses or both tangible and intangible damage. A cyber event could be any unknown attempt to a network or device. Or it might be defined to only include successful unauthorized network access. A more narrow definition of cyber event is when an economic loss is realized.
These problematic characteristics can significantly vary across different regions and business sectors, but all are essential considerations in studying cyber risk.
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Primary Disciplines: Data Science, Economics, Management Science
Establishing consistent metrics that can communicate the extent of cyber risk internally and externally is important to understanding an organization’s cyber posture. One of the more important reasons to establish metrics is to understand the cost and benefits of investing in cybersecurity.
There will always be tradeoffs to security. Sometimes, it is convenience, other times it is a direct cost, and in some cases it is technological progress. The many types of tradeoffs can be abstracted into an equation with variables and represented as the level of cyber risk that an organization is comfortable with. Today this equation is formulated ad hoc for individual organizations based on point-in-time data. The calculus is then used to assess how much spending should be done to manage cyber risk. While these cyber risk equations such as presented in the Gordon-Loeb Model could be tactically useful (i.e., for supporting individual decisions), they do not capture macro cyber risk trends that could influence an organization’s long-term risk management strategy.
Also, current models fail to capture the considerable interdependencies across digitally enabled systems and their respective industries. The failure or compromise of a single digital system could cause cascading failures and exponential repercussions. This complicates the calculus of an organization’s cyber risk. It is unclear where the line should be drawn about where one organization’s cyber risk ends and another’s begins. These interdependent digital systems lead to one type of cyber accumulation risk.
Accumulation risks for cyber can involve the reliance across several industries on a subset of third-party providers. For example, there is a critical mass of digital capabilities across multiple organizations and industries that are reliant on a handful of cloud service providers. A cloud service provider can be seen as a single point of failure across multiple industries. Should one of these digital infrastructure services be compromised, millions of their users will be impacted globally. One such example could be for critical infrastructure that operates on supervisory control and data acquisition (SCADA) systems. An attack on a SCADA system that controls the electric grid could have cascading impacts across sectors. As previously mentioned, risk damages can vary from tangible damages as extreme as human life, to intangible assets like reputation damages and financial losses, over a very long period of time.
The metric used to measure cyber risk by data science researchers is frequently considered to be the expected loss from a cyber breach. However, different metrics (e.g., probability of a loss of a given size, variance of potential loss) are sometimes used by researchers in other disciplines.
Methodologies are needed to improve the modeling of interdependent cyber events so that organizations can better prepare for cyber threats across a given industry or several interdependent industries. Further, these models can help evaluate accumulated risk potential. This research could be used by insurers improve estimates risk exposure in portfolios and to define risk tolerances.
Such research could be leveraged by insurers to calculate risk exposures and define risk tolerances.
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Primary Disciplines: Computer Science and Management Science
One of the most under-developed areas of research is cyber risk avoidance, which usually involves managerial decisions at the level of enterprise architecture so that the enterprise is “less risky by design”. Of course, the interconnectivity of digital systems today is essential to the success in most industries, and therefore not all cyber risks can be avoided. But too often researchers, industry practitioners, and government policy makers take for granted the unchecked expansion of digital computing, communications, and interconnection.
One mechanism to avoid cyber risks is to minimize the use of computing systems and their connectivity. We do not necessarily encourage this, however, it is indeed a risk avoidance mechanism that some organizations employ. For example, anecdotally, we were informed that in several nuclear facilities, conscious decisions were made to revert to analog devices to avoid cyber risk. This is not a decision to be taken lightly considering the benefits digital devices afford (another, slightly “softer” practice, is to use internet-disconnected networks to reduce risk, like the use in military networks. Conversely, deciding to take such networks offline can generate additional cyber risks associated with off cycle or custom patches or other work necessary to maintain functionality/operability when a network is not readily connected to the internet. The unplugging argument does raise the issue of over-digitization of assets and the inherent cost/benefit of security to convenience and operational efficiency. This becomes an important discussion point for operations managers and those studying digital transformation.
Another option to avoid risk is by designing and using inherently secure systems. Today most devices, networks and systems make use of technology that was built without security as a priority. This issue is now even more pronounced with the prevalence of internet of things (IoT) devices that are designed with low-cost connectivity in mind (by vendors with little experience in the software sector). Some new approaches to designing and building software and hardware systems embody security-by-design principles. Such principles include practices such as deny-by-default where a system inherently disallows processes from running so that the surface area of attack is minimized. The intention of these securely designed digital assets is to optimize functionality while attempting to guarantee some level of security. Further technical advancements in this area—including those that can help to reduce the sometimes exorbitant cost of such assets—will only help to avoid cyber risks to the extent the securely designed systems are deployed. A persistent challenge to realize the benefits of new technology is device lifecycle, where it could be decades (as is the case for industrial systems) before devices are replaced and the security of the system is updated accordingly. Conversely, there is a trade-off: continuously replacing devices to more modern ones, with security implemented, also imposes the risk of new vulnerabilities detected and exploited, since new devices are using new protocols, new features and functionality, which exposes to new risks.
Matters of risk avoidance fall to system operators who can determine the operational value of having a digitized asset (and therefore judge if a digital system is necessary) and computer scientists that can design inherently secure systems.
Although in defined domains, one can argue that it is a best practice to minimize the use of connected systems, the global trend and development is forcing society the other way – being more connected, using more technologies and producing more data. Most businesses are critically (and increasingly so) dependent on technology and connected channels. Modern life and future trends will dramatically increase our dependence on connected technology (e.g. connected and autonomous cars).
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Primary Disciplines: Behavioral Science, Computer Science, Law, Political Science
The Parkerian hexad outlines six elements of information security organizations should consider: confidentiality, possession or control, integrity, authenticity, availability and utility. The goal of fending off attacks theoretically entails preserving the hexad. Increasingly, organizations understand that they cannot protect themselves from and prevent all threats all the time. This raises the need to prioritize their systems, networks and data’s security and evaluate the opportunity to reduce cyber risk across the security hexad. Further, the relative importance of confidentiality, integrity and availability based on organizational context must be explored.
For example, if an organization faces the threat of a data breach versus data corruption – should one require more attention than the other? Some experts argue that for personally identifiable information (PII), confidentiality should no longer be a security priority because of the many large-scale data breaches that have occurred to date. It is inevitable that personal information will be stolen at some point in today’s cybersecurity climate. Therefore, more resources should be expended on authenticating the integrity of personal information through relational information rather than focusing on keeping the information hidden. Of course, these experts would argue that confidentiality should not be ignored, but simply prioritized accordingly. It is important to note, however, that such deprioritization can have regulatory consequences and potentially create economic loss due to fines/penalties (CCIA and GDPR fines for this). Organizations have finite resources available to manage cyber threats. Therefore, to properly manage cyber exposure, it is instrumental to study how organizations should prioritize assets and their associated cyber risks.
Beyond prioritizing and securing the most critical assets, concrete steps towards preventing specific cyber events can also be achieved through threat information sharing. Intra-industry security cooperation could be an effective cyber event prevention tool. The idea behind information sharing is simple. If organization A shares recent attacks with others (B and C) that may use similar digital assets, future attacks against B and C could be prevented. Today, Information Sharing Analysis Centers (ISACs) which have been established to facilitate cyber event information sharing across all critical infrastructure sectors have not been equally successful. ISACs are only as effective as the member organization’s participation. Some industries, like the financial sector, have member organizations that actively participate in information sharing. This in turn improves the security posture of the entire industry. Other sectors have seen less member organization participation. Studying why some sectors engage more with their ISACs than others could help improve cyber event prevention in sectors without effective information sharing.
There is a public good character of cybersecurity, which leads to some typical economical underinvestment problems. From an individual’s point of view it might be optimal to reduce investments in cybersecurity and public policy might help (or be needed) to get to some minimum standards for prevention. In light of the lack of policy direction in this space, it is important to evaluate market mechanisms that can have the same effect. Cyber insurance can be an example of this.
Some sectors already require insurance for daily operations. If cyber event prevention requirements were incorporated into mandated insurance policies, organizations would need to comply quickly for fear of losing their operating license. Importantly though, requiring purchase of a cyber insurance policy is not the point. Rather forcing a security conversation as part of the underwriting process for purchasing cyber insurance can potentially help institutionalize discussions and practices concerning cybersecurity.
Another market mechanism that some sectors require to indicate a minimum level of security is accreditations and certifications. Accreditations and certifications often require some compliance exercises to maintain status which assumes there is a third-party auditor of security practices that grants credentials. Such program are imperfect because they promote a “checkbox” compliance culture where many organizations stop worrying about their cyber risks if they complete the certification process. For this reason, several market mechanisms are needed to work in concert to reduce cyber risk at scale.
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Primary Disciplines: Economics, Law, Management Science, Political Science
Another problematic aspect of cyber risk is accountability and responsibility. There is serious need for more research on how quantified cyber risk might improve accountability and responsibility, and also how it might have undesirable consequences. There are both social and financial definitions an implications of risk transfer. The financial definition of “risk transfer” is “a third-party takes responsibility for uncertain costs or losses, governed by contract, and usually in exchange for a premium or other compensation”. Most often the third-party is an insurance company. The societal definition of “risk transfer” is “another party (second, third, …) takes over accountability and responsibility for the uncertain costs, losses, consequences, or remediation efforts.” Organizations that have cyber risk transferred to them are subject to social sanctions such as blame, legal liability, etc. but also can claim social responsibility and authority such as leadership, sponsorship, and value network orchestration.
After each cyber event, fingers are pointed within an organization. More often than not, the CISO and/or the CIO take the blame for a cyber event. However, other times a system admin is blamed. In rare cases, where a major cybersecurity breach occurs, the CEO or the board of directors are held responsible for a breach. Ownership of cyber risk within an organization is generally unclear – even if there is a CISO or CIO that is supposed to manage information security. Because cyber risk is a key part of an organization’s overall business risk, cyber responsibility should be distributed across the organization. On a micro level, questions about the role of a CISO, where a CISO should sit in an organization and the extent of responsibility a CISO has is important to understanding an organization’s cyber risk.
On a macro scale, it is important to consider how organizations can transfer cyber responsibility and the associated risk externally to insurers, capital markets, contracts in indemnity and hold harmless agreements, or even the government. Today there are clear gaps in understanding how to accurately price the forward-looking cyber risk for a specific organization. There are even bigger gaps in understanding how cyber risks can accumulate across sectors and interdependent assets. This has inhibited the insurance industry from assuming more of this risk. As insurers and reinsurers become more confident in the extent of these risks, insurance can become a greater force in helping organizations transfer cyber risk. The same can be said for capital markets as cyber risk takers. However, there are some cyber events that the private sector may have limited interest in covering. One example is events deemed as “cyberwar”.
Beyond assessing defensive responsibility for cyber risk, it is vital to understand the attack dimension as well. Understanding who the adversary is, their motive, the sophistication and the scale of the attack could help to uncover if the attack was an act of war. Conversely, not all cyber risk incurred is the result of a malicious actor, but instead a result of unintentional behavior by people with certain access to network, data and systems. To distinguish the motive is important because at the point a cyber event is considered an act of cyberterrorism or cyberwar, it may become the government’s responsibility to interject and help manage cyber risk for private organizations, not dissimilar to what happened after 9/11. Some cyber risks and their associated causes will be easier to insure than others. For example, risks caused by unintentional behavior are typically not systematic and do not accumulate across companies in the same way that a concerted attack may accumulate. Therefore, unintentional behavior-caused cyber risks are likely to be more insurable.
To date many cyber insurance policies contain “acts of war” exclusions. However, there are many cyberwar definitions in use. We expect some of these definitions to change – and possibly consolidate – after a major cyberattack that insurance practitioners consider cyberwar.
Clarification around understanding both defensive cyber risk ownership, attribution and attack context are critical for selecting strategies to manage different cyber threats. A persistently moving target for what is cyberwar will not only hinder the private sector’s ability to properly manage their risk, but also limit insurers’ interest in covering cyber risk.
Biener, Christian, Martin Eling, and Jan Hendrik Wirfs. "Insurability of cyber risk: An empirical analysis." The Geneva Papers on Risk and Insurance 40.1 (2015): 131-158.
Bodin, L., L.A. Gordon, M.P. Loeb and A. Wang, 2018. Cybersecurity insurance and risk-sharing. Journal of Accounting and Public Policy 37(6): 527-544 (see: https://doi.org/10.1016/j.jaccpubpol.2018.10.004).
Eling, Martin, and Jingjing Zhu. "Which Insurers Write Cyber Insurance? Evidence from the US Property and Casualty Insurance Industry." Journal of Insurance Issues 41.1 (2018): 22-56.
Gordon, Lawrence A., Martin P. Loeb, and Tashfeen Sohail. "A framework for using insurance for cyber-risk management." Communications of the ACM 46.3 (2003): 81-85.
Primary Disciplines: Behavioral Science, Economics, Law, Management Science, Political Science
Regardless of prevention measures that organizations take, there is still some probability that an organization will experience a cyber event. Responding to residual cyber risk is as important as preventing the risk. There are multiple components of incident response including internal communication, external communication, threat containment, system repair and conducting attack post-mortems. Several organizations believe that upon being attacked, they can call the FBI or some government agency to request help. This is largely a fallacy. As evidenced in several high profile cyber events, incident response is managed by third-party consultants, not the government. Engaging these consultants becomes financially burdensome quickly. Therefore, the financials of residual risk management must be carefully studied.
One major residual risk issue organizations are struggling with is understanding how reputational damages manifest over time after a cyber event. While the stock price implications of a cyber event have been documented thoroughly, reputational damages long-term are less understood which can have indirect impacts on business performance.
Research is needed across the spectrum on residual cyber risks. Operators need better incident response playbooks, to include strategies and plans for communicating with various parties—shareholders, government officials, regulatory authorities, and the public. Executives need a clearer understanding of how much residual risk will cost and how to account for this in fiscal planning. Each of these areas can be unpacked yielding many interesting projects that can span across disciplines.
Choucri, Nazli, Stuart Madnick, and Priscilla Koepke. "Institutions for cyber security: International responses and data sharing initiatives." Cambridge, MA: Massachusetts Institute of Technology (2016).
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Gordon, Lawrence A., Martin P. Loeb, and William Lucyshyn. "Sharing information on computer systems security: An economic analysis." Journal of Accounting and Public Policy 22.6 (2003): 461-485.
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The main takeaway from this research agenda is the need for a multidisciplinary research approach to the six umbrella questions that make up the Cyber Risk Unified Concept Model and to begin work on the dozens of related empirical questions. As cyber risk as research problem continues to develop it requires shared understanding within and between aforementioned fields, coherence on which disciplines are best suited to tackle specific problem sets, and identification of collaborations with the potential to be most impactful.
Private industry and public organizations will benefit greatly from unbiased efforts to understand cyber risk. Disciplines involved with cyber risk research are tasked with working together while not overstating their own expertise. For example, data scientists need to evaluate the data while political scientists draw inferences from the past and present to lend insight on the cyberwar debate, and so on. Not only will effective multidisciplinary cooperation provide valuable understanding for cyber risk mitigation, but it will also begin to provide unique insights for dealing with cyber incidents. We believe that each discipline has a unique role in helping industry and academia make progress towards understanding cyber risk. Because of cyber risk’s interdisciplinary nature, it is essential for each field to evaluate how they fit into the broader research agenda.
 If all of these users had cyber insurance, the effects could be devastating on the underwriters and reinsurers of the policies considering the scale of the accumulated risk.