Exfiltration Over Web Service — Exfiltration over a web service transfers information through an online platform or application. Attackers abuse services that the organization already permits. The legitimate provider’s infrastructure helps the transfer blend with ordinary web activity. – Data Exfiltration

Added October 7, 2026

Exfiltration Over Web Service — Exfiltration over a web service transfers stolen information through an external online platform. Criminals exploit familiar destinations and ordinary web traffic to reduce suspicion. The service’s legitimacy does not establish authorization for the transfer. – Data Exfiltration

Added October 7, 2026