From the article: David Chaum is a giant in the realm of computer security and, not surprisingly, cryptocurrency. His focus since the early 1980s, his company DigiCash sent the first digital payment in 1994, and he has since doubled down on blockchain and security. Chaum is future-proofing messaging by releasing the first “quantum-resistant” messaging app, a service that is purported to hold up to brute force attacks for decades to come. Called xx messenger, the app launches today. Read the full article on TechCrunch.com.