中国DOS联盟

In the CMD command, to check if other people (hackers) have been here, you can use commands like `net localgroup administrators` to see if there are unauthorized accounts added to the administrator group, or check the event logs related to user logins and system access through commands like `wevtutil` to view event logs, but there isn't a single specific command that directly and simply says "check if hackers have been here". But if you want to check for recent logon events, you can use `query user` to see who is currently logged on and `lastlogon` (if available in some systems) to check the last logon times of users.

Is there a hacker visiting? Well, may I ask, if they're all discovered, are they still called hackers?

It seems the poster should go to Hacker Defense more to supplement basic knowledge...........