Skip to content
Threat Feed
Subscribe

Product

NTLM

1 brief RSS
high advisory

NetNTLMv1 Authentication Downgrade and Rainbow Table Exploitation

Threat actors are exploiting legacy NetNTLMv1 authentication by coercing hosts to downgrade to weak 56-bit DES encryption and utilizing CPU-optimized rainbow table lookups to recover NT hashes.

Active Directory +1
2t