AWS IoT Device Management has enhanced its connectivity status API to include detailed MQTT session data, such as session timeout and expiry values, plus optional socket-level details including IP addresses, ports, and VPC endpoint IDs. Unlike the IoT Core GetConnection API, which only retains data for 30 minutes post-disconnect, this API stores connection history indefinitely. This is useful for security auditing, forensic investigation of disconnect events, and monitoring connection patterns across large IoT fleets.

Architect’s Take: Review and tighten IAM policies controlling access to the new socket-level details (source/destination IPs, ports, VPC endpoint IDs), as this data could aid lateral movement reconnaissance if exposed to over-privileged roles. Use the indefinite data retention capability to feed IoT connectivity logs into your SIEM for anomaly detection and post-incident forensics.

Original advisory: AWS IoT Device Management adds MQTT session data to connectivity status API