Swiss prosecutors investigate data leak at federal pension fund Publica

Publica, the pension fund for Swiss federal government staff, confirmed a data leak caused by a cyberattack on one of its external software suppliers. The supplier discovered the breach in late September and filed a criminal complaint, prompting an investigation by the Office of the Attorney General; the scope of the leaked data and the number of affected members remain unknown.

• The attack hit an external software supplier, not Publica's own infrastructure
• The supplier found the breach in late September and filed a criminal complaint
• The volume of leaked data and number of affected members are undisclosed
• As of end-2025 the fund had about 70,000 active members and 41,600 pensioners