Matten Municipality Says Cyberattack Encrypted Some Data; No Theft Found So Far

Summary

Matten municipality says a March 14–15, 2026 cyberattack encrypted some municipal data, which was fully restored. Its analysis found no data theft or publication; operations continued and critical systems were reportedly unaffected.

Key points

• Matten said its municipal ICT infrastructure was targeted over the weekend of March 14–15, 2026.
• Some data was encrypted and fully restored; the municipality says analysis to date found no data theft and no municipal data published.
• Municipal operations continued, with phone and in-person services available during regular hours.
• The municipality says resident and foreigner registration, business administration, and financial systems were not affected.
• External specialists were brought in to restore systems, conduct forensic analysis, and preserve evidence; Bern Cantonal Police was notified and a complaint filed against unknown persons.
• The municipality says it strengthened technical and organizational measures, including ICT system hardening, and continues cybersecurity training.
• It reported no damage beyond reputational harm and the effort required to restore systems.