Swiss government data published following supply chain attack – here’s what we know about the culprits

The Swiss government has warned that sensitive data has been stolen and leaked following a cyber attack on a supplier.

Radix, a non-profit organization in the health promotion sector, supplies a number of federal offices, whose data has apparently been accessed.

"Investigations are currently under way to determine the specific units and data affected by the attack," Swiss authorities said in a statement. "As Radix has no direct access to Federal Administration systems, the attackers did not gain entry to these systems at any time."

30% off Keeper Security's Business Starter and Business plans

Keeper Security is trusted and valued by thousands of businesses and millions of employees. Why not join them and protect your most important assets while taking advantage of this special offer?

ITpro Approved - Sponsored offerView Deal

The government said that the Swiss National Cyber Security Center (NCSC) is coordinating further investigations.

The agency is in continuous dialogue with Radix, as well as the prosecution authorities and the Federal Administration units affected by the attack, and will release more information in due course.

With the government apparently refusing to pay a ransom, the stolen data has now been published on the dark web by the Sarcoma ransomware group.

"Affected individuals were personally informed if particularly sensitive personal data could have been affected," said Radix.

"Based on current knowledge, there is no indication that sensitive data from partner organizations has been affected."

Who are the Sarcoma ransomware group?

The Sarcoma ransomware group has appeared relatively recently, having been first detected late last year.

Since then, though, it's become highly active, targeting organizations including Smart Media Group Bulgaria, Unimicron, and TMA Group.

The group typically carries out its attacks via phishing emails, but is known to also target outdated software and vulnerabilities, as well as supply chain weaknesses.

Andrew Costis, engineering manager of the adversary research team at AttackIQ, said that while the group is a relative newcomer to the cyber crime landscape, it’s been “very active” and claimed 36 attacks in its first month.

"Sarcoma is known for implementing double extortion tactics, where members are pressured into paying ransoms to avoid information being leaked."

Governments are increasingly coming under fire from cyber attackers, and while this is mostly due to the activity of hostile nation states, there's a threat from financially motivated ransomware gangs as well.

“This incident is yet another reminder that public sector institutions and non-profits are not immune to the tactics of increasingly professionalised cybercriminal groups,” said Lee Driver, vice president of managed security services at Ekco.

“Even when the attack isn’t directly on government infrastructure, the ripple effect through shared third-party platforms can expose sensitive data and create serious trust issues.”

"With data already appearing on the dark web, we’re likely to see further implications as investigators identify which departments and datasets were affected."

According to the Swiss NCSC, it received a cyber incident report on average every 8.5 minutes last year. Over the first half of 2024, the number was almost twice that for the same period the previous year.

MORE FROM ITPRO

• Ransomware victims are getting better at haggling with hackers
• Building ransomware resilience to avoid paying out
• The new ransomware groups worrying security researchers in 2025