Windows updates bring changes to legacy NTLM authentication

Microsoft's latest Windows updates bring major changes to NTLM authentication.

NTLM is a legacy authentication system that some organizations still use.

The updates mark a major security shift for Windows.

Organizations relying on NTLM need to prepare for a new deadline, but its date is not stated.

The changes matter because they affect how those organizations handle authentication.

Organizations still using NTLM need to prepare for the change.

The available information does not say what the deadline is or what organizations must do next.