Rakan follows these people on Refind.

HackerOne
Putting hackers first since 2012. The #1 Vulnerability Disclosure & Bug Bounty Platform.
Citizen Lab
Research and development at the intersection of cyberspace, global security, and human rights. Munk School of Global Affairs, University of Toronto, Canada
Troy Hunt
Pluralsight author. Microsoft Regional Director and MVP for Developer Security. Online security, technology and “The Cloud”. Creator of @haveibeenpwned.
Korben
Chef de l'Internet @ http://Korben.info et Expert Interplanétaire en #BugBounty @ Bountyfactory.io par @yeswehack
John Romero
Speaking inquiries: info@romero.com. Game designer, programmer, etc. Wolfenstein 3D, DOOM, Quake, Dangerous Dave, Keen, Heretic, Hexen, Ravenwood Fair + more.
Visual Studio Code
Microsoft's Visual Studio Code lets you build and debug modern web and cloud applications. Code is free and available on Linux, Mac OSX, and Windows.