Active cyber defence (also spelled active cyber defense) is
|“||[a] proactive measure for detecting or obtaining information as to a cyber intrusion, cyber attack, or impending cyber operation, or for determining the origin of an operation that involves launching a pre-emptive, preventive, or cyber-counter operation against the source.||”|
|“||the principle of implementing security measures to strengthen the security of a network or system to make it more robust against attack.||”|
|“||[a s]ynchronized, real-time capability to discover, detect, analyze, and mitigate threats and vulnerabilities.||”|
- ↑ Tallinn Manual, at 210.
- ↑ National Cyber Security Strategy 2016 to 2021, Glossary, Annex 2, at 72.
- ↑ CNSSI 4009, at 3.