Phantom was built by Chris Kalani, Francesco Agosti, and Brandon Millman after brainstorming a Solana-native wallet. Phantom is a non-custodial wallet that is compatible with assets on the Solana blockchain. With Phantom, users can trade, receive, send, and store assets conveniently. It is also compatible with hardware wallets, especially Ledger, for tighter security. Phantom is available on mobile phones and also exists as a browser extension.