LexisNexis Cirium incident
Temporary removal of Alerts API SMTP delivery option
Resolved after 49 days 7 hours, affecting Cirium Sky™ APIs, on April 8, 2026.
This has been resolved and the SMTP (email) delivery option has been re-enabled in the Alerts API.
Affected components
Update timeline
- identified Apr 08, 2026, 03:04 PM UTC
Due to a security concern, we have temporarily deactivated the Alerts API SMTP (email) delivery option that is available for testing and evaluation purposes only. To continue testing the Alerts API on either the Flightstats or Sky platforms, please configure delivery to an HTTPS endpoint that accepts POST requests, as per https://developer.cirium.com/apis/cirium-sky-api/flight-alerts. We apologise for any inconvenience and will provide an update as soon as there is progress to report.
- resolved May 27, 2026, 10:51 PM UTC
This has been resolved and the SMTP (email) delivery option has been re-enabled in the Alerts API.
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