Non-repudiation (NR) is the digital world's truth serum—no more "I didn’t send that email" escapes! Like an online notary, NR ensures every click, promise, and action sticks with cryptographic certainty. It’s the hero of digital integrity, making honesty not just a virtue, but a mathematical necessity. In this episode, we decode NR’s paradox—because in cyberspace, the 'oops' button is permanently broken.