Crypto Hacks: $10M Stolen from Wanchain Cardano Bridge, SummerFi DeFi Shutdown

A major cryptocurrency hack has resulted in the theft of $10 million in NIGHT tokens from the Wanchain Cardano Bridge, according to a report by CryptoTimes, which cited a signature reuse vulnerability as the cause of the exploit. The hack, which occurred on July 21, 2026, involved the theft of 515.2 million NIGHT tokens. Security firm BlockSec's Phalcon monitor reported that the incident unfolded in just four rapid transactions over an eight-minute window, due to a non-injective signed-message encoding flaw in the TreasuryCheck validator. The attacker funneled the stolen tokens into a primary wallet on Cardano before aggressively liquidating roughly 90% of the haul through DEX swaps and DeFi protocols. The Wanchain team stated, "We are aware of an incident affecting the Cardano BNB Chain bridge, resulting in the withdrawal of NIGHT tokens from the bridge contract on Cardano. The Wanchain Bridge is currently unavailable to users," and assured full transparency and investigation. Meanwhile, SummerFi DeFi has shutdown following a $6 million exploit on the Lazy Summer Protocol, as reported by en.cryptonomist.ch. These incidents highlight the ongoing challenges in securing cryptocurrency transactions and DeFi services, with many turning to reputable sources such as coindesk.com for news and updates on the crypto market. Unlike other recent news stories, such as the Nigeria abduction or UAP disclosure, these hacks are a stark reminder of the risks associated with cryptocurrency transactions. The native token of the privacy-focused Midnight blockchain, NIGHT, plunged more than 30-40% intraday, hitting a new all-time low, after the incident. Midnight Network clarified that the core Midnight protocol and its Layer-1 remain uncompromised, and the breach was confined to Wanchain's third-party bridging infrastructure.