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Microsoft Confirms It Gave FBI BitLocker Keys in Guam Case

Microsoft says it can act only when customers back up recovery keys to its cloud, a default that is prompting fresh scrutiny of Windows encryption design.

Overview

  • Court records show that on February 10, 2025 Microsoft supplied recovery keys for three BitLocker‑protected laptops seized in a Guam pandemic‑fraud probe, enabling access investigators could not otherwise obtain.
  • Microsoft confirmed it provides BitLocker recovery keys in response to valid legal orders and said it receives roughly 20 such requests per year.
  • The company can only comply when users have stored recovery keys in their Microsoft accounts, which is commonly the default on modern Windows setups.
  • This Guam matter is the first publicly known instance of Microsoft handing BitLocker recovery keys to law enforcement, according to the reporting and court filings.
  • Privacy advocates and Senator Ron Wyden criticized the practice and warned that centralized key storage increases risks of government overreach and potential misuse.