Caller claimed to be from the NBN, saying that they received a security alert from our internet, but he couldn't tell me who is my internet provider. He said he had all my personal details, but could not tell me my name when asked. According to https://www.nbnco.com.au/learn/protect-yourself-from-scams, NBN will NEVER call you to advise that your nbn™ connection has been ‘hacked’ or has a security issue.

Caller: Don’t know

Tryed calling back when hung up you cant call the number???