Originally published at authgear.com . tl;dr — Passkeys are cryptographic key pairs that replace passwords. The private key never leaves your device, so passkeys cannot be phished, guessed, or leaked in a server breach. The trade-off is recovery — lose all your devices and you fall back to email reset, just like passwords. In 2026 every major OS supports passkeys natively, so the comparison is now a real one. In 2026, passkeys have moved from experiment to mainstream. Apple, Google, and Microsoft now support passkeys across all major platforms. Over 15 billion accounts can use passkeys. And the question developers and security teams ask most often is simple: are passkeys actually safer than passwords? The short answer is yes — significantly. The longer answer explains exactly why, and what it means for your app.…