The Australian Signals Directorate's Infosec Registered Assessors Program (IRAP) endorses qualified security professionals to provide information security services.
IRAP assessors do not call individuals to alert them to a scam or a hacker.
If you have been directed to this page by someone who called you without warning, and is claiming to be an IRAP assessor, they may be a scammer. Hang up immediately, and report it to ASD or call 1300 CYBER 1.