Atos now says its systems weren’t hit by a ransomware attack after all

• Threat actor claimed to have breached Atos in late December 2024
• The company confirmed the incident involved an “unconnected third-party”
• Adds the threat actors stole documents that “mention” the Atos name

Atos has denied earlier claims of a ransomware attack, noting it was a third party not connected to the company that was actually breached.

In late December 2024, a ransomware actor named Space Bears added Atos to its data leak website, claiming to have compromised an internal company database. However the claims were not backed by concrete evidence, as usual things like ransom demands, or data samples, were missing.