Which of the following is a key purpose of intrusion prevention signatures in FortiGate?

The primary function of intrusion prevention signatures in FortiGate devices is to detect and block suspicious traffic patterns. These signatures are critical components of the Intrusion Prevention System (IPS) that help identify known threats by analyzing packet content and checking it against a predefined set of rules or signatures. When a match is found, the IPS can take action, such as blocking the traffic or alerting administrators, thereby preventing potential threats from entering the network.

This capability is essential for maintaining network security, as it allows organizations to proactively defend against various types of cyberattacks, including exploits, malware, and unauthorized access attempts. By relying on up-to-date signatures, the FortiGate IPS can effectively identify and respond to new and evolving threats in real-time, safeguarding the integrity of the network and its resources.

The other options do not align with the primary role of intrusion prevention signatures. Enhancing user interface experience relates to usability and design, improving wireless network coverage pertains to physical connectivity and signal strength, and providing detailed bandwidth analysis focuses on traffic management and monitoring rather than direct security measures.