Zero-click attack definition
Zero-click attacks, unlike most cyberattacks, don’t require any interaction from the users they target, such as clicking on a link, enabling macros, or launching an executable. They are sophisticated, often used in cyberespionage campaigns, and tend to leave very few traces behind—which makes them dangerous.
Once a device is compromised, an attacker can choose to install surveillance software, or they can choose to enact a much more destructive strategy by encrypting the files and holding them for ransom. Generally, a victim can’t tell when and how they’ve been infected through a zero-click attack, which means users can do little to protect themselves.