Sintac Recycling Listed by qilin Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

On December 29, 2025, Sintac Recycling was listed on the leak site maintained by the Qilin ransomware group. The entry states that internal files were removed from the organisation during a ransomware operation, though the number of individuals affected and the exact scope of the material remain undisclosed. The listing raises immediate questions for anyone whose information is held by the company, including employees, suppliers and local partners whose records may now circulate beyond the original environment.

What happened

Sintac Recycling was added to the Qilin ransomware leak site on 29 December 2025. The group claims to have stolen internal data during the incident. No figure for the volume of data, the number of people affected or the precise method of access has been made public.

Inside qilin

Qilin is a ransomware-as-a-service operation that has conducted multiple campaigns against organisations in Europe and elsewhere. Public reporting on the group describes a pattern of encrypting systems and then threatening to publish stolen files if a ransom is not paid. Listings on its leak site function as a pressure tactic rather than verified proof that every claimed dataset has been independently confirmed.

Who is Sintac Recycling?

Sintac Recycling operates in the waste-management and materials-recovery sector. Companies of this type routinely maintain records on employees, commercial contracts, vehicle fleets, regulatory compliance and customer accounts. A breach at such a firm can therefore touch both personal identifiers and operational information that is not normally visible to the public.

What was likely exposed

The only detail released is that internal files were allegedly exfiltrated. The exact categories of data have not been confirmed. Organisations in this sector commonly store:

• Employee records including names, contact details and payroll information
• Customer and supplier contracts
• Operational logs and regulatory submissions

Until further disclosure, it is not possible to state which of these categories, if any, were taken.

What's at stake

Exposed internal files can be used for targeted fraud, impersonation of the company or its staff, or further attacks on connected organisations. For individuals named in the records, the main risks are identity misuse and unwanted contact. For the organisation itself, the incident adds costs for investigation, possible regulatory reporting and restoration of systems.

Were you affected?

Begin by watching official statements from Sintac Recycling and any notices sent to employees or clients. Review bank and credit accounts for unusual activity and consider placing fraud alerts if personal identifiers appear at risk. A free exposure scan of your email address against known breach datasets can indicate whether your information has already appeared in public listings from this or other incidents.

AICompiled with AI assistance from public sources and published under our editorial standards.