Phantom to End Sui Support on September 24, Highlighting Wallet Interface Influence

Phantom announced that on September 24 it will cease all Sui‑related functionality. After that date the wallet will no longer show Sui balances, enable Sui transfers or swaps, or connect to Sui‑based decentralized applications. The assets themselves remain on the Sui blockchain, tied to the user’s credentials.

What Changes on September 24

Phantom will remove Sui from its network list, stop displaying balances, and disable any transaction or dapp integration for the chain. Users who wish to continue accessing their Sui holdings must use a different compatible wallet.

Migration Options

• Swap native SUI to wrapped SUI on Solana – Keeps exposure on a Phantom‑supported network; no recovery‑phrase migration needed; Phantom’s fee is waived for this specific cross‑chain swap.
• Swap SUI to SOL, ETH, or USDC – Moves value to another supported asset; standard network and exchange fees apply.
• Import recovery phrase into Slush – The same Sui address becomes visible in Slush; users must securely record and import their recovery phrase; no asset transfer required.
• Connect Ledger to Slush – Hardware‑wallet users can access their Sui account via Slush without exposing private keys; separate setup is required.

Security Considerations

Migration involves handling recovery phrases or private keys, which introduces a risk of credential exposure. Both Phantom and Slush warn that they will never request recovery phrases or private keys directly. Users should record phrases offline and avoid sharing them.

Implications for Wallet‑Layer Distribution

The removal does not affect ownership of Sui tokens, but it eliminates the convenient interface that Phantom provided for balance visibility, transaction execution, and dapp interaction. This demonstrates how wallet providers can shape user access to a blockchain even when the underlying ledger remains permissionless.

Unknowns

Phantom and the Sui Foundation have not disclosed the reason for ending support or the number of users affected. The impact on Sui activity through Phantom therefore remains unclear.