L0phtCrack is no longer sold or supported as a commercial product. The original owners repossessed the software after the previous company (Terahash) defaulted on their acquisition.
As all commercial sales ceased on July 1, 2021, official license keys for "L0phtCrack Enterprise 7.0.15" are no longer available from the creators. The developers have explored open-source options for the tool. l0phtcrack-enterprise-7-0-15-crack-license-key-download
Disclaimer: Attempting to download "cracks" or "license keys" from unauthorized sources often exposes users to malware, ransomware, or trojans. L0phtCrack is no longer sold or supported as