Fiserv
[AI generated] Fiserv is a global financial technology company headquartered in Milwaukee, Wisconsin, United States. It provides financial services technology solutions including payment processing, core banking systems, digital banking platforms, and merchant acquiring services. Serving banks, credit unions, retailers, and businesses worldwide, Fiserv operates across the fintech and banking technology industry and is one of the largest providers of financial services infrastructure globally.
Incident Details
- Threat Group
- everest
- Victim / Organization
- Fiserv
- Website / Domain
- fiserv.com
- Industry Sector
- Financial Services
- Country / Region
- 🇺🇸 US
- Date Discovered
- Saturday, May 2, 2026
What This Listing Means
Posting on everest's ransomware leak site typically signals that the threat actor claims to have:
- ▸Gained unauthorized access to the organization's network via phishing, exposed credentials, or an unpatched vulnerability
- ▸Exfiltrated sensitive data — potentially including financial records, PII, customer data, or trade secrets
- ▸Deployed ransomware to encrypt systems and disrupt operations
- ▸Issued a ransom demand with a deadline to publish all stolen data publicly if unpaid
🇺🇸 US-based organizations hit by ransomware may have mandatory breach notification obligations under state laws, HIPAA (healthcare), SEC regulations (public companies), or CISA guidelines. The notification window is typically 72 hours from discovery.
Open Source Investigation
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