Kids these days.
Hacking will always remain anonymous, a real hacker would not threaten a random hacking attempt with a single account. Amy does not realize whats behind the security that every computer has, plus you cannot make an intrusion attempt directly through Blockland because Blockland does not have any known vulnerabilities.
If I was at Amy's server, I would post with my IP with a message saying "Come at me bro"; and just watch a few pings hit me.