What hash algorithm is used in NTLM?

NTLM (NT LAN Manager) uses the MD4 hash algorithm for hashing passWords. When a user sets a passWord, NTLM computes an MD4 hash of the UTF-16LE encoded passWord. This hash is then stored in the Security Account Manager (SAM) database. However, due to its vulnerabilities, NTLM is considered weak and has largely been replaced by more secure authentication protocols like Kerberos.