IdenQ: digital safe hold vault

SafeHold — Quantum-Safe Storage for What Matters Most Everything you encrypt today can be stored today and broken tomorrow. It's called Harvest Now, Decrypt Later: adversaries collect encrypted data now and wait for quantum computers capable of breaking it. Anything meant to stay private for a decade or more is already exposed. SafeHold is built for that timeline. ENCRYPTED BEFORE IT LEAVES YOUR DEVICE Your files, notes, and credentials are encrypted locally with AES-256-GCM before anything is transmitted. Your key is derived from your passphrase on your device and never sent to our servers. ZERO-KNOWLEDGE BY ARCHITECTURE, NOT BY POLICY We don't promise not to read your data — we've built a system where we structurally cannot. There is no operator-held escrow, no master key, no recovery backdoor. If we were compelled to hand over your vault, we would hand over ciphertext we cannot open. WORKS OFFLINE, SYNCS PRIVATELY Your vault lives on your device and stays fully usable with no connection. When you add a second device, they sync through a blind mailbox: our infrastructure routes encrypted envelopes between your devices without ever seeing the contents. BUILT FOR LONG-HORIZON SECRETS Wills and estate documents. Recovery phrases and private keys. Contracts, medical records, intellectual property, family archives. Anything whose value doesn't expire in a news cycle. WHAT YOU CAN STORE * Documents, images and files * Secure notes * Credentials and recovery phrases * Structured records with custom fields SECURITY DETAILS * AES-256-GCM authenticated encryption * PBKDF2 key derivation from your passphrase * Client-side encryption — plaintext never reaches our infrastructure * Encrypted local storage with offline-first access * Blind mailbox sync for end-to-end encrypted multi-device use * Migration path toward post-quantum cryptographic primitives IMPORTANT: YOU HOLD THE ONLY KEY This is the trade-off of real zero-knowledge. If you lose your passphrase, your data cannot be recovered — not by you, not by us, not by anyone. Store your passphrase the way you would store a physical key to a safe. ABOUT IDENQ IdenQ builds quantum-safe security infrastructure for organizations and individuals whose data has to survive the arrival of cryptographically relevant quantum computers. SafeHold is our personal vault; the same cryptographic core powers our enterprise platform. Your data. Your key. Your century. idenq.io