Parasitizing trust: How legitimate infrastructure becomes a delivery pipeline for attackers

Adversaries are turning the tools businesses trust into delivery mechanisms for malicious activity. Cisco Talos observed abuse of more than 25 legitimate platforms over the past year, exploiting the built-in trust of collaboration, file-sharing, payment and other services to reach their targets.

Published 21-Oct-2026 10:40 UTC · First seen 21-Oct-2026 10:40 UTC

Sources

• Cisco Talos blog · 21-Oct-2026