Multiple Objectives of Lawful-Surveillance Protocols.- Getting Security Objectives Wrong: A Cautionary Tale of an Industrial Control System.- Assuring the Safety of Asymmetric Social Protocols.- Simulating Perceptions of Security.- Self-Attestation of Things.- Making Decryption Accountable.- Extending Full Disk Encryption for the Future.- Key Exchange with the Help of a Public Ledger.- Reconciling Multiple Objectives – Politics or Markets?.- The Seconomics (Security-Economics) Vulnerabilities of Decentralized Autonomous Organizations.- A Security Perspective on Publication Metrics.- Controlling Your Neighbors Bandwidth for Fun and Profit.- Permanent Reencryption: How to Survive Generations of Cryptanalysts to Come.- Security from Disjoint Paths: Is It Possible?.- End to End Security Is Not Enough.- Auditable PAKEs: Approaching Fair Exchange Without a TTP.