Non-Repudiation — CompTIA Security+ (SY0-701) Practice Questions

Non-repudiation is the assurance that a party cannot deny having performed an action, such as sending a message or signing a document, because cryptographic evidence ties the action to that party's identity. In the context of SY0-701, non-repudiation is most commonly achieved through digital signatures, which use a sender's private key to create a verifiable proof of origin and integrity that the sender cannot later disavow. The exam tests candidates on how non-repudiation differs from authentication and integrity, and why it is a critical requirement in legal, financial, and audit contexts. Candidates should understand that non-repudiation depends on the security of the private key and the trustworthiness of the certificate authority (CA) that issued the corresponding certificate.

Free questions on non-repudiation

An organization must ensure that employees cannot deny they authorized a transaction. Which security principle is being addressed?
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