Blockchain analytics firm Allium discloses breach affecting systems used by major clients

On 25 October 2026 Allium detected unauthorized access to parts of its internal infrastructure. The company launched an investigation, brought in external experts and alerted its customers.

Clients include Visa, Coinbase and Stripe, though there is still no evidence that their data was exposed during the incident.

Allium immediately revoked existing API keys and advised users to update passwords. The full scope of any potential data exposure remains undisclosed.

Based on information from cryptonews.net