BitUnlocker Downgrade Attack on Windows 11 Breaches Encrypted Disks Within Minutes Security researchers have uncovered a deeply alarming attack technique targeting Windows 11 users that can silently strip away the protection of BitLocker-encrypted drives in a matter of minutes. Dubbed the "BitUnlocker" downgrade attack , this method forces Windows 11 systems to revert to older, less secure encryption states — effectively unlocking protected disks without ever knowing the user's password or recovery key. The discovery has sent shockwaves through enterprise security teams and individual users alike. BitLocker has long been regarded as one of the most reliable full-disk encryption solutions available on Windows, trusted by millions of businesses, government agencies, and individuals to safeguard sensitive data. This new attack fundamentally challenges that trust. ##What Is a Downgrade Attack?…