SummerFi, a DeFi access point operating for seven years, said it will wind down Summer.fi and sunset its user interface, attributing the decision to a recent exploit on its Lazy Summer Protocol.
"After 7 amazing years building in DeFi, the recent exploit on the Lazy Summer Protocol has forced us into the very difficult decision to wind down Summer.fi and sunset the UI," the company said Wednesday on its official X account. It added, "We want to thank all our users, the community and supporters - you made it worthwhile."
The post is the first statement from the operator tying its closure to the exploit. SummerFi did not state an effective wind-down date or address the status of user funds in the announcement.
The Defiant reported on July 6 that Summer Finance was drained of $6 million in a flash-loan exploit. SummerFi has separately characterized the incident as NAV manipulation rather than a flash-loan hack; that account has not been independently reconciled with the earlier description.
Stani Kulechov, founder of lending protocol Aave, reacted to the announcement on X, writing, "Sad to see as SummerFi has been an OG in DeFi. It also demonstrates the stakes and costs that go into providing high quality and secure DeFi access point." He added that the seven years "been a nice ride for their team" and that SummerFi "will be missed."
The closure follows other DeFi front-end shutdowns. Zapper, a portfolio and transaction interface, is set to close Aug. 3 after nearly seven years. Front ends that route users to onchain protocols carry operating and security costs that the underlying smart contracts do not, a point Kulechov underscored in his post.
SummerFi has not published a schedule for how or when users should move assets ahead of the UI sunset.