An advanced persistent threat gains unauthorized access to a computer network and remains undetected for an extended period.
Notes on verification
Definition consistently corroborated by multiple independent cybersecurity industry sources (Cybereason, Proofpoint, Fortinet, Cisco).
Sources
- Advanced persistent threat (en.wikipedia.org)
- https://www.cybereason.com/blog/advanced-persistent-threat-apt (cybereason.com)
- https://www.proofpoint.com/us/threat-reference/advanced-persistent-threat (proofpoint.com)
- https://www.fortinet.com/resources/cyberglossary/advanced-persistent-threat (fortinet.com)
- https://www.cisco.com/site/us/en/learn/topics/security/what-is-an-advanced-persistent-threat-apt.html (cisco.com)