What happened in the Bankr wallet hack?

Bankr said attackers gained access to at least 14 wallets linked to its AI-powered crypto trading platform. The company temporarily disabled swaps, transfers and deployments while investigating the incident.

How much crypto was reportedly stolen from Bankr users?

Some affected users reported losses of up to $150,000 per wallet. Security researcher Yu Xian said attacker wallets collectively held around $440,000 in crypto assets.

What is Bankr and how does it work?

Bankr is an AI-powered crypto assistant that lets users trade, transfer and launch tokens using plain-language prompts instead of traditional wallet interfaces. The platform also automatically creates crypto wallets for X users who interact with its bot.

Why did Bankr disable transactions?

Bankr said it suspended activity “out of caution” while investigating the exploit. The company wanted to prevent further unauthorised access or additional wallet drain events during the investigation.

What caused the Bankr exploit?

According to SlowMist founder Yu Xian, the exploit was likely a social engineering attack targeting trust relationships between automated AI agents. He said the incident appeared linked to prompt injection vulnerabilities involving Grok and Bankrbot interactions.

What is a prompt injection attack in AI systems?

A prompt injection attack happens when attackers manipulate AI instructions to bypass intended safeguards or trigger unauthorised actions. In crypto systems, this can become dangerous if AI agents are connected to wallets or transaction-signing functions.

Did Bankr promise to reimburse affected users?

Yes, Bankr said it would reimburse “any and all lost funds” tied to the incident. Investors and users will likely watch whether repayments happen quickly and whether the company reveals more technical details about the exploit.

What security advice did Bankr give users?

Bankr advised users not to sign transactions until further notice and recommended creating a new wallet and seed phrase on a clean device if they were affected. The company also urged users to revoke wallet approvals where possible.

Cryptocurrency

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Bankr halts transactions after wallet hack

Written by Jon CuthbertPublished May 20, 2026, 5:26 AM

Bankr temporarily disabled transactions after identifying an attacker who gained access to at least 14 wallets linked to its AI-powered crypto trading platform.

The company said swaps, transfers and deployments were suspended “out of caution” while it investigates the incident, with some users reporting losses of as much as $150,000 in crypto assets.

“We've identified an attacker was able to access 14 Bankr wallets,”

Bankr said in a statement posted on X, adding:

“We will be reimbursing any and all lost funds.”

Bankr allows users to execute crypto trades, transfers and token launches using natural-language prompts rather than traditional wallet interfaces, while also automatically generating crypto wallets for X users who interact with its bot.

Yu Xian said the exploit was likely a social engineering attack targeting the trust relationship between automated AI agents, adding that attacker wallets collectively held roughly $440,000 in crypto assets.

“It was a social engineering exploit targeting the trust layer between automated agents,”

Xian said, adding:

“It seems like a combo of social engineering exploits targeting Grok + Bankrbot.”

Bankr advised users not to sign transactions until further notice and recommended anyone with a compromised wallet create a new wallet and seed phrase on a clean device, move remaining assets where possible and revoke token approvals to prevent additional losses.

The attack follows a broader rise in crypto exploits after hackers stole more than $168.6 million in digital assets during the first quarter, including major incidents involving Drift Protocol and Kelp, while tech entrepreneur Austen Allred said one of his Bankr-linked wallets was among those compromised.