Hillicon Valley: Tim Cook defends App Store rules during antitrust trial | Online school raises new concerns about cyberbullying | Dating apps adding vaccination badges to user profiles

Welcome to Hillicon Valley, The Hill's newsletter detailing all you need to know about the tech and cyber news from Capitol Hill to Silicon Valley. If you don't already, be sure to sign up for our newsletter by clicking HERE. Welcome! Follow our cyber reporter, Maggie Miller (@magmill95), and tech...