RaccoonO365 Phishing Network Dismantled as Microsoft, Cloudflare Take Down 338 Domains

RaccoonO365 Phishing Network Dismantled as Microsoft, Cloudflare Take Down 338 Domains

Microsoft’s Digital Crimes Unit said it teamed up with Cloudflare to coordinate the seizure of 338 domains used by RaccoonO365, a financially motivated threat group that was behind a phishing-as-a-service (Phaas) toolkit used to steal more than 5,000 Microsoft 365 credentials from 94 countries since July 2024.

Using a court order granted by the Southern District of New York, the DCU seized 338 websites associated with the popular service, disrupting the operation’s technical infrastructure and cutting off criminals’ access to victims,” Steven Masada, assistant general counsel at DCU, said.

This case shows that cybercriminals don’t need to be sophisticated to cause widespread harm – simple tools like RaccoonO365 make cybercrime accessible to virtually anyone, putting millions of users at risk.

The initial phase of the Cloudflare takedown commenced on September 2, 2025, with additional actions occurring on September 3 and September 4. This included banning all identified domains, placing interstitial “phish warning” pages in front of them, terminating the associated Workers scripts, and suspending the user accounts. The efforts were completed on September 8.

Source: thehackernews.com