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Google Put ‘Q‑Day’ on the Calendar: The ‘Steal Now, Decrypt Later’ Trap That Could Make Your 2026 Backups Useless by 2029
Technology

Google Put ‘Q‑Day’ on the Calendar: The ‘Steal Now, Decrypt Later’ Trap That Could Make Your 2026 Backups Useless by 2029

Google’s unusually explicit 2029 post‑quantum migration target reframes quantum risk as a present-day confidentiality problem—because attackers can harvest encrypted data now and decrypt later. The real danger isn’t a dramatic 2029 break; it’s the quiet breach that becomes readable years after you thought it was contained.

April 10, 2026 · 12 min read

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