PortSwigger researcher Gareth Heyes is probably best known for smashing the AngularJS sandbox to pieces and creating super-elegant XSS vectors. He is the author of JavaScript for hackers. In his daily life at PortSwigger, Gareth can often be found creating new XSS vectors, and researching new techniques to attack web applications. He has a keen interest in hacking CSS to do wonderful, unexpected things and can often be seen experimenting with 3D pure CSS rooms, games and taking markup languages to the limit on his website. He's also the author of PortSwigger's XSS Cheat Sheet. In his spare time, he loves writing new BApp extensions such as Hackvertor.