What is Talos Intelligence?

**Talos Intelligence** is Cisco's threat intelligence organization, providing security research and reputation data. Their email reputation system feeds Cisco email security products and is available for third-party query.

**Talos** maintains **sender reputation** scores based on: sending patterns, spam reports, **malware** association, and network behavior. Reputation ranges from Good through Neutral to Poor, with Poor scores triggering blocking in Cisco-protected environments.

Cisco email security is common in enterprises, so **Talos** reputation affects **B2B** delivery significantly. Their reputation center provides lookup tools and reputation status. Unlike traditional blocklists, **Talos** uses graduated scores rather than binary listings.