Homelab Hero · No. 012: your result
Blocking the address treats the symptom: the login already succeeded, hours ago, from an address the intruder can change in seconds. If they left a new account, a key, or a scheduled job behind, none of it cares about your router rule — and by tomorrow's audit the logs you needed may have rotated past the one night that matters.
The lesson: A successful login is a compromise until proven otherwise. Blocking the source IP is not a response.
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Tomorrow’s incident drops with the next issue at 7:00 AM PT.