Threat Bulletin 1410: HTTP POST flood against a video streaming platform in the UK

On Saturday 18 July 2026 at 19:03 UTC, a HTTP POST flood targeted a video streaming customer in the UK. The attack peaked at 136.9 million requests per second and lasted 143 minutes. Traffic originated from 287 autonomous systems in 7 countries, predominantly a rented booter service.

Vector HTTP POST flood
Peak 136.9 million requests per second
Duration 143 min
Time to mitigation 0.395 s
Attack traffic reaching origin 0.002%
Legitimate traffic challenged 0.03%

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 596 within 9 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

No customer-visible impact. The on-call engineer was notified and acknowledged the incident from the dashboard.

Recommendations

  • Enable authenticated origin pulls.
  • Add a dedicated rate limit for the targeted route.
  • Enable log streaming to your SIEM for faster correlation.

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