Linux Security HOWTO : What To Do During and After a Breakin
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Next: Security Compromise Underway.

10. What To Do During and After a Breakin

So you have followed some of the advice here (or elsewhere) and have detected a break-in? The first thing to do is to remain calm. Hasty actions can cause more harm than the attacker would have.

10.1. Security Compromise Underway.

10.2. Security Compromise has already happened

10.2.1. Closing the Hole
10.2.2. Assessing the Damage
10.2.3. Backups, Backups, Backups!
10.2.4. Tracking Down the Intruder.

Linux Security HOWTO : What To Do During and After a Breakin
Previous: Apply All New System Updates.
Next: Security Compromise Underway.