What is Hijacked Device?
A device (e.g., mobile phone, PC, laptop, tablet, etc.) that has some sort of malware installed on it and may be controlled and/or manipulated by outside hackers. In terms of ad fraud, compromised devices may have malware on them that instructs bots to open browsers, visit websites, and interact with ads, often unbeknownst to the owner. These devices may be part of a larger botnet. Because these devices have malware on them and may be able to be accessed and controlled by outside hackers, they are considered compromised and a security risk.