Why do most VPN apps suck so badly? How do you know which VPN service providers you can trust with your privacy? How is it that our internet service providers know so much about our web surfing habits? Today I explore these questions and more with John Graham-Cumming, the CTO of the internet performance and security company. He will also tell us about a new VPN service coming soon from Cloudflare called Warp that may finally address all of these problems.

John is a computer programmer and author. He studied mathematics and computation at Oxford and stayed for a doctorate in computer security. As a programmer he has worked in Silicon Valley and New York, the UK, Germany, and France. His open source POPFile program won a Jolt Productivity Award in 2004. John is the author of a travel book for scientists published in 2009 called The Geek Atlas.