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.