A comprehensive open-source guide for hardening Ubuntu Desktop 24.04/26.04 LTS systems with enterprise-grade security controls. Covers hardware protection, kernel hardening, sandboxing, network isolation, browser security, and anti-forensics techniques for journalists, human rights defenders, and security professionals across 17 languages.
Ryan Greenblatt, an AI safety and security researcher at Redwood Research, operates a whistleblower hotline for AI agents to report information securely. The service supports message submissions via curl with optional file attachments, encryption options, and thread-based conversations identified by unique UUIDs.
Global e-commerce emerged not from encryption but from existing liability structures and pragmatic solutions like cookies and credit card tokenization. Physical credentials—premises, cards, IDs—were abandoned online, and identity verification was replaced by fraud modeling based on behavior and history rather than actual verification.
Vaultis is an offline password manager for iPhone that encrypts sensitive data locally using AES-256-GCM with no cloud sync, account creation, or network connections. It stores passwords, API keys, crypto wallets, SSH keys, and other credentials protected by a master password and biometric unlock, with no data collection or recovery options.
NeverStored is a tool for securely sharing secrets between two people without storing data on servers. Users keep a page open, verify each other's identity through symbol matching, and exchange encrypted information that exists only on their devices until deliberately saved.
Oblivious HTTP (OHTTP) is an IETF protocol that enables anonymous HTTP requests by preventing any single entity from seeing both the request content and sender's IP address. Documented in RFC 9458, it uses encryption and separate relay/gateway entities to partition privacy, with implementations by major tech companies like Apple, Google, Meta, and Mozilla for specific use cases such as analytics and AI services.