CompTIA Security+ SY0-701 Updated Exam

An Acceptable Use Policy (AUP) defines what users are permitted and prohibited from doing on an organization ' s systems, including website access. Accessing unauthorized sites is a common violation of the AUP.

Comprehensive and Detailed Explanation From Exact Extract:

The scenario describes attackers registering a similar-looking domain to trick users into visiting a malicious site. This matches the definition of typosquatting, also known as URL hijacking or domain spoofing. Typosquatting relies on users mistyping legitimate URLs or failing to notice slight visual differences (e.g., “dropbx.com” instead of “dropbox.com”). Attackers use these domains to distribute malware, steal credentials, or redirect users to phishing pages.

Watering-hole attacks (A) infect legitimate websites frequented by a specific target group, which does not match this scenario. Brand impersonation (B) involves mimicking a company’s identity—often combined with email phishing—but the question specifically mentions creating a similar-looking domain, which is characteristic of typosquatting. Phishing (C) may use these malicious domains, but phishing is a broader social-engineering attack, whereas typosquatting precisely describes the domain manipulation technique.

Security+ SY0-701 emphasizes typosquatting under Social Engineering & Web-based Threats, highlighting how attackers exploit user errors to redirect traffic to malicious destinations. Reducing this risk involves user training, DNS filtering, domain monitoring, and certificate validation.

Comprehensive and Detailed Explanation From Exact Extract:

Non-repudiation ensures that a sender cannot deny sending a message. Digital signatures provide non-repudiation because they use the sender’s private key, which only the legitimate owner possesses. When the email recipient verifies the digital signature using the sender’s public key, it proves the email was sent by the true owner of the private key and has not been altered.

Confidentiality (B) ensures information is protected from unauthorized access and is usually achieved through encryption. Integrity (C) ensures data has not been modified, while authentication (D) verifies the identity of a user. Although digital signatures also support integrity and authentication, the specific property that prevents denial of sending the email is non-repudiation.

Security+ SY0-701 highlights digital signatures as a cryptographic mechanism used for authentication, integrity, and non-repudiation, especially in email security, PKI systems, and secure messaging.

Thus, the correct answer is Non-repudiation.

Classification is the process of assigning a level of sensitivity and handling requirements to data, which informs its lifecycle management, retention, and disposal methods. In regulated industries such as banking, proper data classification ensures that data subject to legal or regulatory requirements is destroyed according to those requirements at the end of its retention period. This directly guides how the data should be handled and disposed of.