How is compromise defined in the context of information

Question

How is "compromise" defined in the context of information technology and information security?

1. A compromise is a security breach that is always perpetrated by a malicious attacker.
2. A compromise is the potential for an intrusion into a computer system or unauthorized access to an online account, file, or other resource.
3. A compromise is a breach in the security of a computer system, an account, a file, or another online resource.
4. A compromise is a security breach that is never the result of an accidental action by a user.