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. https://developer.ibm.com/iotplatform/2017/10/26/advanced-notice-certificate-updates-watson-iot-platform/
blog article
ADVANCED NOTICE: CERTIFICATE UPDATES FOR WATSON IOT PLATFORM
This blog post is providing advanced notification to Watson IoT Platform customers about changes to the Watson IoT Platform in relation to security. These changes impact some endpoints communicating using TLS over MQTT to the Watson IoT Platform. This is referred to as the IoT messaging service. JAMES MURPHY READ MORE