Computer systems in Kościerzyna municipality (located in northern Poland) have been infected with ransomware. The amount of ransom (in bitcoins) demanded by attackers has not been announced publicly.
The attack occurred on November 28 and the situation has still not been resolved. Official announcement from the mayor was issued on December 4, because of considerable delays in the municipality's operations. There's a delay in paying of benefits and alimonies and all employees in the municipality have to use paper for everyday operations.
UODO, Polish data watchdog, has been informed about the situation in the municipality, although mayor believes no personal data has been breached in the attack. According to CERT PL, the ransomware strain which infected the systems in Kościerzyna has no known decryptors and the municipality will have to look for help from an external company.