Blog
Read practical guidance on private notes, encryption, password hygiene, secure sharing, and safer communication habits for everyday work and personal use.
One-Time Secret Links: How to Share Sensitive Information Without Leaving a Permanent Record
Email, Slack, and text messages were built to keep messages forever. Some secrets were never meant to persist. Here's how one-time encrypted links work, when to use them, and why burn after reading is a security feature—not a gimmick.
One-Time Secret Links: How to Share Sensitive Information Without Leaving a Permanent Record
Email, Slack, and text messages were built to keep messages forever. Some secrets were never meant to persist. Here's how one-time encrypted links work, when to use them, and why burn after reading is a security feature—not a gimmick.
AI Agents Are Becoming Employees. We Need to Start Securing Them Like Employees.
Prompt injection is no longer the whole story. As AI agents gain tools, memory, and autonomy, security must govern the entire system—not just the model.
Using PrivateNote with OpenAI Codex
One command wires the PrivateNote MCP server into every Codex session. Here's exactly how to set it up, what Codex can do with it, and how to keep secrets out of the agent prompt entirely.
Stop Pasting Passwords into Slack. Use PrivateNote Instead.
A plain-language guide to sharing secrets from VS Code, Cursor, an AI agent, or any browser — with encryption that never leaves your machine.
Why Privacy Matters
Privacy is not paranoia; it is good engineering and a basic human need for autonomy, experimentation, and dignity.
The Myth of "Good Enough" Security
Why modern threats demand architectural security, short-lived sensitive data, safer defaults, and privacy tools that reduce risk beyond better habits alone.
How We Generate Secure Passwords
Learn how we use cryptographic randomness, unbiased selection, and intelligent strength analysis to create secure passwords.