Stellar Development Foundation outlines a three-stage roadmap to protect its blockchain from quantum computing threats by 2027.
Stellar has announced a three-stage plan to transition its blockchain to quantum-safe cryptography, addressing risks posed by advancements in quantum computing. The migration will begin in 2026, with full implementation targeted by the end of 2027, allowing users to upgrade without changing wallet addresses.
The initiative focuses on two key threats: forged validator signatures and the potential derivation of private keys from public ones. Stellar’s structural advantage—separating account identity from signing keys—enables a less disruptive transition compared to networks like Bitcoin or Ethereum.
The first phase in 2026 will introduce post-quantum signature verification for smart contracts. A major challenge remains dormant accounts, where holders may be unreachable for upgrades.