Dr Katie Paxton-Fear is a lecturer of cyber security at Manchester Metropolitan University and an API security researcher at Traceable AI. But she's better known for her hobbies! She's a hacker and YouTuber, she's made 50+ videos on a range of topics, explaining vulnerabilities, tools, etc., and made a splash as an API hacker finding vulnerabilities in software you probably use every day. With a dash of British humour, her videos are the free 101 bug bounty course you never knew you needed.