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Solana has historically seen its largest price declines on Thursdays, and today is no exemption as the crypto industry reels from the over $270 million exploit that occurred yesterday on Drift, a trading venue native to the solana blockchain.

The price of solana has decreased 5.5% to around $78, a level not seen since February, data from CoinGecko shows.

Drift was one of the largest protocols on the solana network by total value locked, which now sits at nearly $245 million. The total value locked on solana has shrunk by nearly $1 billion since the incident, per DefiLlama.

Exploit likely involved from social engineering

The attack, which has turned into a wider contagion event, is unsettling for those in the industry. It did not come from a bug in the protocol’s smart contracts or programs. “Humans remain the bottleneck,” Mert Mumtaz, cofounder and CEO of solana development firm Helius, said in response to the incident.

The exploit involved unauthorized transaction approvals likely facilitated through social engineering. The sophisticated operation “appears to have involved multi-week preparation and staged execution,” the team said on Thursday. 

Omer Goldberg, founder of risk management firm Chaos Labs, added, “The DeFi [decentralized finance] ecosystem continues to grow in scale, but not in operational security.”

“Protocols now have custody of hundreds of millions in user funds while depending on admin key setups that would be considered unacceptable in TradFi for a fraction of that AUM [assets under management],” Goldberg wrote on X. 

“Most hacks come down to the simple act of one clicking a link they shouldn’t have clicked. These are picking up in pace, be extra cautious clicking any link or file,” continued Helius’ Mumtaz.