City of York Council contacted users of its One Planet York app, warning that an unauthorised third-party had accessed their personal information including name, addresses, postcode, and telephone number. Almost 6000 people could be affected by the data breach which, the council said, had been reported to the police. The app was permanently withdrawn and users were advised to remove it from their smartphones and change their passwords. The council said it attempted to discuss the security incident with the person who informed them (and to understand their actions) but received no reply.”]
Source: https://grahamcluley.com/one-city-york-vulnerability/