Cass information Systems
About the organisation
[AI generated] Cass Information Systems is a US-based company specializing in payment and information services. It provides freight invoice processing, auditing, and payment solutions, along with utility and telecom expense management. Operating primarily in the financial technology and business process outsourcing industry, Cass serves large corporations across North America and globally, helping clients manage and analyze invoice data to optimize spending and operational efficiency.
What the listing means
Cass information Systems appeared on the coinbasecartel leak site on 11 May 2026. Groups publish a victim once negotiations stall or as pressure during them, so a listing usually means data was already exfiltrated. This group has published 4 claims in the last 30 days and remains active.
Recommended actions
- Treat any unsolicited message referencing Cass information Systems as suspicious — leaked data gets weaponised for phishing within days.
- If you hold an account on cassinfo.com, change that password now, update it anywhere you reused it, and enable two-factor authentication.
- Other Business Services organisations should review this group's known TTPs and validate detection coverage against them.
- Watch for follow-on extortion: stolen data is often re-leaked or resold after the initial listing.
- A leak-site listing is a claim made by the attacker, not a confirmed breach — check the organisation's own disclosures before acting on it.
Leak-site evidence
Listing URL https://www.ransomware.live/id/Q2FzcyBpbmZvcm1hdGlvbiBTeXN0ZW1zQGNvaW5iYXNlY2FydGVs
Show leak-site screenshot
Captured from the group's extortion site. It may contain the victim's data or the attacker's messaging.
