In this week’s Cyber Security Brief podcast, Dick O’Brien and Brigid O Gorman discuss some of the biggest cyber security stories of the last two weeks. Ransomware has once again dominated the news headlines, with news about huge ransom payments and ransom recovery operations being reported. Meanwhile, cyber security comes to the fore in the political sphere following pronouncements from the G7 and NATO summits. Elsewhere, attackers leveraged Slack to attack one of the world’s biggest gaming companies, one of the largest online marketplaces for stolen credentials in the world was taken down by authorities, and how law enforcement used a backdoored chat app to spy on criminals, leading to hundreds of arrests.