Cybersecurity 101

In today’s digital world, cybersecurity is essential. At WatchGuard, we break down key cybersecurity topics with clear explanations, practical examples, and proven best practices. Whether you want to learn about network security, endpoint protection, identity management, or cyber threats—start your journey with Cybersecurity 101.

A | B | C | D | E | F | G | I | L | M | N | O | P | R | S | T | V | W | X | Z

F

Fileless Attacks

A type of cyberattack that uses legitimate, built-in system tools (like PowerShell, WMI) and resides in computer memory (RAM) instead of writing malicious files to the hard drive. Extremely difficult for traditional antivirus software to detect. Often called living-off-the-land (LotL) attacks.