City officials haven't yet determined the full extent of the attack, which has affected internal shared files.
The city of Sammamish declared an emergency on Wednesday in response to a ransomware attack on the city’s computer system.
The emergency declaration by interim City Manager Larry Patterson allowed the city to bring in a third-party security expert without having to go through the standard contracting process, the city said in a statement.
It also raised Patterson’s spending authority to exceed $50,000 without City Council approval, Sammamish Mayor Christie Malchow said in a tweet.
The attack was discovered Wednesday morning and has affected internal shared files, city spokeswoman Sharon Gavin said. Computers at City Hall were shut down for much of Wednesday, she said.
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City officials haven’t yet determined the full extent of the attack but have taken down a building-permit portal and map services as a precaution, Gavin said. Residents will need to go in to City Hall to access those services, she said.
The city will release more information as the situation develops, Gavin said.