Ntlm-hash-decrypter · Trusted

An "NTLM decrypter" would require breaking preimage resistance for MD4. As of 2025, no practical preimage attack exists for MD4 against the full 128-bit output (best cryptanalysis reduces complexity to ~$2^102$, still impossible for real passwords).

Move toward Kerberos authentication and restrict NTLM usage via Group Policy. ntlm-hash-decrypter