An advanced persistent threat (APT) is a threat actor, often a stealthy nation-state, a state-sponsored or criminal gang that gains unauthorized access to a computer network.
APTs remain undetected for an extended period.
Dwell times in managed networks such as government, defense, financial services, legal services, industrial, telecoms, consumer goods, and other targets in the Americas have been reported as long as two months, Europe 6 months, and Asia 9 months.
With extended periods of being embedded in networks, attackers can advance their attacks and are more successful at completing their intended exploit.
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