The MQTT notification service (Android) has experienced downtime in the past hours due to a large-scale Denial of Service attack on our service by an unknown party. We have been unsuccessful in blocking the attack. Instead, we have greatly over-provisioned compute resources to support the immense number of connections introduced by the attack.
Service has currently been restored. At this time we are continuing to monitor the attack as it is still ongoing. We are also investigating ways to detect and block Denial of Service attacks automatically to prevent similar incidents in the future.
Further incidents will be posted if there are any future developments. We truly apologize for any inconvenience caused by this Denial of Service attack.
