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Bankr suffers social engineering attack; 14 wallets hacked for over $440,000

Kucoin • May 20, 2026

According to ME News, on May 20 (UTC+8), Bankr disclosed that an attacker had gained access to 14 Bankr wallets. The Bankr official team stated it has temporarily disabled the affected functions and pledged full compensation for user losses. Yu Xian, founder of SlowMist, commented that the theft of Bankr user wallets occurred due to responses generated by @bankrbot itself; the attacker exploited a trust-layer vulnerability between Grok and the Bankrbot automation agent, using malicious prompts to manipulate interactions between agents and execute unauthorized transaction signatures. The hacker is known to have profited over $440,000. (Source: Foresight News)

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Bankr Wallets Compromised in Social Engineering Attack, $440,000 Stolen Bankr, an AI-driven crypto trading assistant, reported a security breach on May 20, 2026, where an attacker accessed 14 wallets, leading to losses exceeding $440,000. The company temporarily halted transactions and promised full reimbursement for affected users. The attack exploited a trust-layer vulnerability between Bankr's automation agents, Grok and Bankrbot, allowing unauthorized transaction signatures through manipulated prompts. Experts noted that the incident reflects a broader issue of social engineering vulnerabilities in AI-assisted crypto tools. Users are advised to refrain from signing transactions and to create new wallets to secure their assets. The investigation is ongoing, with Bankr emphasizing the need for users to take precautionary measures. 3 sources 66

Bankr suffers social engineering attack; 14 wallets hacked for over $440,000

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