On the Assessment of Systematic Risk in Networked Systems
In a networked system, the risk of security compromises depends not only on each node’s security, but also on the topological structure formed by the connected individuals, …
Benjamin Johnson
Economic Analyses of Security Investments on Cryptocurrency Exchanges
Cryptocurrency exchanges are frequently targeted and compromised by cyber-attacks, which may lead to significant losses for the depositors and closure of the affected exchanges. …
Benjamin Johnson
Games of Timing for Security in Dynamic Environments
Benjamin Johnson
Adaptive Steganography and Steganalysis with Fixed-Size Embedding
We analyze a two-player zero-sum game between a steganographer, Alice, and a steganalyst, Eve. In this game, Alice wants to hide a secret message of length $k$ in a binary …
Benjamin Johnson
Secure Team Composition to Thwart Insider Threats and Cyberespionage
We develop a formal non-deterministic game model for secure team composition to counter cyber-espionage and to protect organizational secrets against an attacker who tries to …
The Complexity of Estimating Systematic Risk in Networks
Benjamin Johnson
How Many Down? Toward Understanding Systematic Risk in Networks
Acceptance Rate: 20%
Benjamin Johnson