843
Flash Policy
Low RiskTCP — Web
Port Overview
Port Number
843
Service Name
Flash Policy
Transport Protocol
TCP
Category
Web
Security Risk
Low
Port Range
Well-Known (0-1023)
What is Port 843?
Adobe Flash Player cross-domain policy server. Entirely obsolete following Adobe's end-of-life of Flash Player in December 2020.
TCP
Web
Security Considerations
Port 843 (Flash Policy) is classified as low risk. This service uses encryption or has a minimal attack surface, making it relatively safe to expose.
Recommendation: Standard security practices apply. Keep software updated and monitor access.