CCNA Security 210-260 Certification Guide
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Threat action – intrusion

This is a threat action where there is an attack on the computing system with the harmful intention of causing destruction. This includes the following:

  • Trespass: Obtaining unauthorized access physically to sensitive information by overtaking the network/system's security
  • Penetration: Obtaining unauthorized logical access to sensitive information by overtaking the network/system's security
  • Reverse-engineering: Collecting sensitive information by stripping and analyzing the components of the system/network
  • Cryptanalysis: The technique or process of deciphering an encrypted message without prior knowledge of the secret key