Solana project accidentally destroys itself
During an update, Solana trading platform OptiFi's developers accidentally enabled self-destruction.

During an update, Solana trading platform OptiFi's developers accidentally activated self-destruction. The network is now offline. As a result, the platform's Total Value Locked (TVL) funds of $661,000 are permanently locked. These are USDC stablecoins from user accounts or open trades. However, the OptiFi team has already announced that they will post a View post on X.
The bug was caused by a misunderstanding of Solana's program code. According to a developers' report, one team member accidentally started the "solana program close" program command. This acts as a kill switch on Solana, effectively a programmed self-destruct of the protocol's mainnet.
Developers had previously tried to halt an update due to heavy load on Solana. Here, a second version of OptiFi was created, which they wanted to remove again with the "solana program close" command. The developers themselves said they weren't entirely sure what this would mean for the protocol. Therefore, OptiFi advised the Solana blockchain to add a warning about using the program close command in the software. Many developers on Solana don't seem aware of the consequences. OptiFi has had to learn firsthand how costly this can be.