(Oregon City, OR) -- Oregon City's municipal computer network was hit by a ransomware attack on February 6th. They notified law enforcement and brought in Polar Systems, a third-party specialist, to help. The City says a backup system allowed them to recover their network without paying a ransom. They say there's no evidence that personal identification information was compromised. The investigation continues and the City has taken additional steps to reduce the risk of a future attack.