A week in security (June 17 – 23)

Last week's cybersecurity news covers smart cities, AI, Radiohead's ransom response, lessons from Chernobyl, Steam phish attack, and Mac cryptominer. Other news includes ransomware attack in Florida City, missing smart TV virus warning, security concerns with used Nest cams, fake profiles on LinkedIn, Bella Thorne's response to extortion, phishing scams, vulnerabilities in mobile apps, Twitter's action on state sponsored accounts, and new malware targeting Google 2FA