Blog

Practical writing on private messaging, end-to-end encryption, and ephemeral communication.

• How to share a password without leaving a copy behind

  Email, Slack, and WhatsApp all keep a copy of every password you send. Why that's a problem, and the safer ways to do it.

• Encrypted chat with no account: how Btwinus puts AES-256 in a link

  The technical anatomy of an account-free, server-free, end-to-end encrypted chat — and why "no account" is harder than it sounds.

• Signal vs Telegram vs Btwinus: which one is actually anonymous?

  An honest comparison of three different approaches to private messaging — including where Btwinus does and doesn't fit.

• For journalists: how to receive anonymous tips without leaving a server trail

  A practical guide to receiving anonymous tips with the lowest possible friction and the smallest possible trail.