Threat Bulletin 1187: credential stuffing against a gaming community platform in the Middle East

On Wednesday 10 September 2025 at 22:29 UTC, a credential stuffing targeted a gaming community customer in the Middle East. The attack peaked at 481.3 million requests per second and lasted 144 minutes. Traffic originated from 2985 autonomous systems in 7 countries, predominantly hijacked home routers.

Vector credential stuffing
Peak 481.3 million requests per second
Duration 144 min
Time to mitigation 0.460 s
Attack traffic reaching origin 0.015%
Legitimate traffic challenged 0.22%

Timeline

The attack was preceded by an extortion email received two days earlier. Request rates on the targeted routes exceeded their hourly baseline by a factor of 507 within 23 seconds. The risk score of participating clients crossed the challenge threshold automatically and proof-of-work difficulty rose with origin load.

What the customer saw

Checkout conversion was unchanged compared with the same hour of the previous week.

Recommendations

  • Add a dedicated rate limit for the targeted route.
  • Enable authenticated origin pulls.
  • Review allow-listed partner ranges quarterly.

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