The hacker attack on the Road, Green and Transport Administration servers of Olsztyn occurred nights from 24 to 25 June 2023. As a result, traffic control systems, including traffic lights and city monitoring cameras, have stopped operating. Tickets and the information strategy at the stops were besides dropped. About the case [we wrote at
CyberDefence24.pl](https://cyberdefence24.pl/cybersecurity/atak-hacker-in-olstyn-sparalizowa-city).