Security, Cryptography & Privacy Knowledge Base
Original engineering research, cryptographic protocol documentation, and practical GDPR compliance guides written by the ReaDelete Security Team. Learn how to eliminate plaintext credential sprawl and protect sensitive identity documents.
How Client-Side AES-256-GCM Encryption & URL Hash Keys Work
Deep technical guide to browser-native Web Crypto API (AES-256-GCM), 96-bit initialization vectors, authentication tags, and why URL # fragments never touch servers.
How to Safely Send Passwords, PINs & Logins via WhatsApp, Email or Slack
Step-by-step operational security protocol for sharing passwords, Wi-Fi logins, and 2FA recovery codes over WhatsApp, Slack, Microsoft Teams, and Email without leaving permanent plaintext logs.
GDPR-Compliant ID Card & Passport Sharing: Redaction & Watermarking
Complete legal and technical guide to sharing passports, national ID cards, and driver licenses under GDPR Article 5 & 32 using client-side redaction and diagonal watermarking.
Developer Guide: Sharing .env Files, API Tokens & SSH Keys Without Git Leaks
How engineering teams, DevOps admins, and agencies securely onboard developers and share .env files, Stripe/OpenAI API keys, and database credentials without Slack or Git leaks.
Why Chat Histories & Cloud Backups Are a Goldmine for Credential Stuffing
Understand the difference between transport encryption (TLS/E2EE) and data persistence at rest in iCloud, Google Drive, Exchange, and IMAP backups.
RAM-Only Ephemeral Vaults vs. Database Pastebins: A Forensics Comparison
Why traditional SQL/NoSQL databases and SSD filesystems retain deleted secrets in WAL logs and wear-leveling blocks, and how volatile RAM storage guarantees zero disk persistence.
How to Prevent Identity Fraud When Submitting KYC, Tax, or Rental Documents Online
Practical citizen and consumer guide to protecting your passport, driver license, SSN, BSN, and Steuer-ID against identity theft when applying for rentals, mortgages, or jobs.
Secure Client Onboarding: How Accountants, HR Teams & Landlords Collect Sensitive Data Safely
Actionable workflow guide for accountants, tax advisors, HR departments, real estate brokers, and IT agencies to collect client passwords and ID documents without GDPR inbox liability.