Ransom! Fiserv (MAY-2026)
The claim alleges that the Everest ransomware threat actor targeted Fiserv, a US-based financial technology company, with a ransomware attack. The narrative emphasizes Fiserv’s role as a global provider of payment processing and banking technology, suggesting potential disruption to financial services in the United States #UnitedStates

Incident Details

  • Victim: Fiserv
  • Sector: Financial Services
  • Country: US
  • Actor: everest
  • Source: http://ransomocmou6mnbquqz44ewosbkjk3o5qjsl3orawojexfook2j7esad.onion/news/Fiserv/
  • Discovered: 2026-05-03T03:21:35.669100+00:00
  • Published: 2026-05-03T03:21:19.212719+00:00

Information

  • Global financial technology company headquartered in Milwaukee, Wisconsin, United States
  • Provides payment processing solutions
  • Offers core banking systems
  • Provides digital banking platforms
  • Offers merchant acquiring services
  • Serves banks, credit unions, retailers, and businesses worldwide
  • Operates across the fintech and banking technology industry
  • One of the largest providers of financial services infrastructure globally

Disclaimer: This post is based on public claims made by the ransomware group "everest". I cannot confirm the accuracy of the information. However, I would be happy to share any official statement from the affected organization to provide clarification.

monitored by: ransomware.live