According to Cointelegraph, Solana developers have created a quantum-resistant Vault on the Solana blockchain to protect user funds from possible threats posed by quantum computers. Solana's quantum-resistant capabilities are currently offered as an optional additional feature, rather than a full network security upgrade. This means that Solana users must choose to store their funds in the Winternitz Vault instead of a regular Solana wallet to ensure that their assets are protected from potential quantum threats.