In the wake of continual major data security breaches, all eyes have been on the growing concern of protecting information in the digital world. We examine a new secure messaging app, Hemlis, from Pirate Bay co-founder Peter Sunde. With end-to-end encryption (E2EE) it promises message privacy beyond text, email, Whatsapp, and the like. We look back on walkie talkies, TETRA, standard public-key cryptography, and modern data encryption to unravel whether any sent data is truly secure. Plus: Why "thank you" tweets and DMs are anathema - total Twitter etiquette faux pas. What a blog Facebook Like counter really counts (it's more than just Likes). Tips on Tap: Two awesome iPhone shortcuts and the free iOS Grid spreadsheet app from an ex-Excel developer.