Tech Tent - ransomware, election bots and AI - BBC News

On this week's Tech Tent - your weekly status update on the technology business - we have three stories reflecting our current anxieties about the nature of our digital world. We'll discuss the biggest cybersecurity threat of the moment, the use of bots in the fight to get the upper hand on social media during the US elections and the ongoing debate about the risks of artificial intelligence. This week, producer Jat Gill and I attended a demo by security firm Sophos which left us both rather scared. James Lyne from the firm played a bad guy launching an attack on a company, while two colleagues played the increasingly confused system administrators trying to work out what was going on as chaos engulfed the network. We then heard that the principle weapon in the attackers' armoury was now ransomware.