Arban & Carosi
About the organisation
Arban Carosi: 1TB customer and company data leaked due to negligence. * * Full employee base: Including names, positions, personal and work email addresses, phone numbers. * * Financial Documentation: Contracts, Invoices, Revenue Data * * Customer base: Customer contact details, project details * * Internal correspondence: Service emails and documents disclosing internal processes and company plans. !! In the screenshots, you can see that we have accessed detailed plans of various buildings, including U.S. Army buildings!! We will publish all the data in a week and everyone can use it for their own purposes.
What the listing means
Arban & Carosi appeared on the incransom leak site on 30 April 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 33 claims in the last 30 days and remains active.
Recommended actions
- Treat any unsolicited message referencing Arban & Carosi as suspicious β leaked data gets weaponised for phishing within days.
- If you hold an account on arbancarosi.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 β check the organisation's own disclosures before acting on it.
Leak-site evidence
Listing URL https://www.ransomware.live/id/QXJiYW4gJiBDYXJvc2lAaW5jcmFuc29t
Show leak-site screenshot
Captured from the group's extortion site. It may contain the victim's data or the attacker's messaging.
