Algorand has executed the first post-quantum transaction on its mainnet using NIST-selected Falcon signatures. This transaction demonstrates that quantum-resistant signatures can now protect real digital assets on a live public blockchain today. ...While some researchers argue practical quantum hardware remains decades away, others, including Ethereum co-founder @VitalikButerin, point to forecasts suggesting a 20% probability of cryptographically relevant quantum computers before 2030. While the timeline remains uncertain, the implication is clear: every system relying on classical public-key cryptography must adopt a post-quantum strategy well before quantum attacks become feasible. Recently, #Algorand demonstrated that post-quantum security is no longer theoretical. The protocol team at @AlgoFoundation executed the first post-quantum transaction on Algorand using the Falcon signature scheme on the mainnet network. This transaction, secured by Falcon, a NIST-selected lattice-based signature scheme, shows that quantum-resistant signatures can protect real digital assets on a live public blockchain. While many teams are still outlining post-quantum roadmaps, Algorand has deployed working code, live infrastructure, and developer tooling that supports experimentation today. More: algorand.co/blog/technical-b…