Local Security Authority protection is off. Your device may be vulnerable bug is still causing a headache for Windows 11 users. This bug was first flagged up in March 2023, and it remains broken in Windows 11 KB5025239 & KB5025224, which are the April 2023 cumulative updates for the OS.

So what’s going on here? Like any version of Windows, Windows 11 also comes with Local Security Authority (LSA), which is responsible for enforcing security policies. The LSA process is essential for various areas of the OS, and it is necessary to protect it from being tampered with by malware or other malicious actors.

Windows 11 has the “Local Security Authority protection” feature, first introduced in 8.1 and Server 2012 R2. LSA protection is enabled by default, and Microsoft doesn’t want users to disable it, so a warning for “Local Security Authority protection is off. Your device may be vulnerable” is displayed when you turn off the feature.

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