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Digital security without mysteries.

Passwords, documents, digital inheritance, cryptography, scams, and privacy explained without jargon. For those who want to understand and protect themselves in an increasingly fragile digital world.

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4 reads on the engineering behind the vault.

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  1. 1

    How a vault that never knows your password works

    OPAQUE-3DH, ML-KEM-1024 hybrid, MPC 2-of-3, and Bitcoin-anchored audit chain. The engineering that makes it possible to store data on a server that mathematically cannot read it.

    8 min · 2026-05-19

  2. 2

    Recovery without losing sovereignty: why 3 independent envelopes change everything

    You forgot the vault master password. Can the service give you back access without ever having seen your data? Yes, and the technical name is 'independent OPAQUE envelopes'. How it works, without heavy math.

    8 min · 2026-05-19

  3. 3

    What changed in NIST FIPS 203 (ML-KEM) and why this will affect you sooner than you think

    In August 2024, NIST standardized the world's first post-quantum cryptography algorithm. Out of academic paper, into Chrome, Signal, your bank. The honest guide to what changed, what stays the same, and what you should demand from the services you use.

    10 min · 2026-05-19

  4. 4

    Hackers are already stealing your data today to open it in a few years. There is a name for this.

    Harvest now, decrypt later: the silent attack that captures encrypted data today to decrypt it when quantum computers arrive. Why your data is already at risk, even if nobody is looking at it yet.

    7 min · 2026-05-18