Summary:
TLDR:
Microsoft’s response to a DDoS attack on Azure caused outages that impacted many customers. The attack triggered protection mechanisms, but an implementation bug amplified the impact instead of mitigating it.
- Microsoft Azure services experienced outages due to a DDoS attack response
- The attack triggered protection mechanisms, but an implementation bug amplified the impact
Microsoft’s response to a distributed denial-of-service (DDoS) attack is believed to have caused Azure service outages affecting various customers. The outage, lasting approximately 10 hours, impacted water utilities, courts, banks, and other organizations. An unexpected usage spike led to errors, timeouts, and latency issues. The investigation revealed that the DDoS attack triggered protection mechanisms, but a bug in the defenses intensified the impact rather than reducing it. Microsoft plans to release a preliminary incident review within 72 hours and a detailed review in two weeks. The perpetrators behind the DDoS attack remain unknown, but multiple hacktivist groups may claim credit. This incident occurred shortly after a disruptive update from cybersecurity firm CrowdStrike affected millions of devices worldwide, resulting in potential lawsuits and significant losses for customers.