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Kraken Crypto Exchange Says Criminal Group Claims Access to Some Customer Data

Bloomberg • April 13, 2026

Kraken, one of the world’s oldest crypto exchanges, said it’s being extorted by a criminal group that claims to have access to some client account information.

Client funds were never at risk, Nick Percoco , chief security officer for Kraken, said in a post on the X social network on Monday. The exchange didn’t say how much was being sought by the group.

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Kraken Exchange Targeted by Insider Extortion Attempt Over Data Breach Kraken, a prominent cryptocurrency exchange, is facing an extortion attempt from a criminal group claiming to have video evidence of unauthorized access to internal systems containing client data. The incidents are linked to two separate breaches involving former support team members, with the first breach occurring in February 2025 and the second more recently. Approximately 2,000 customer accounts were affected, representing a small fraction of Kraken's total user base. The exchange confirmed that no client funds were at risk and that they have implemented enhanced security measures following the breaches. Kraken's chief security officer stated that the company will not comply with the extortion demands and is cooperating with law enforcement to investigate the matter. The situation reflects a growing trend of insider threats within the cryptocurrency sector, which has seen increasing sophistication in cyber attacks. Kraken has notified affected customers and is tightening internal controls to prevent future incidents. 5 sources 52

Kraken Crypto Exchange Says Criminal Group Claims Access to Some Customer Data

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Extracted Entities

Attack Types (1)

Ransomware Groups (1)