CISSP Practice question #193

Attacks on our encryption is mostly targeting which leg of the CIA triad?
A: Authentication.
B: Confidentiality.
C: Availability.
D: Integrity.

CBK 1: Security and Risk Management
Source: practice tests


B: To ensure confidentiality we use encryption for data at rest (for instance AES256), full disk encryption. Secure transport protocols for data in motion. (SSL, TLS or IPSEC). There are many attacks against encryption, it is almost always easier to steal the key than breaking it, this is done with cryptanalysis.

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