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A cyberattack on the systems of Allium has resulted in the revocation of API keys and disrupted blockchain analytics for major clients such as Visa and Coinbase.

Allium, a blockchain data provider for large financial institutions like Visa, Stripe, and Coinbase, confirmed unauthorized access to some of its systems. The detection of this security incident on October 25 led to the revocation of API keys and a multi-day outage of the platform's services.

Allium security experts restored the main application and explorer programming interfaces after several days of work. Despite the restoration of some services, platform executives have not yet revealed the attacker's identity, the method of intrusion, or the likelihood of customer data theft.

Ethan Chan, CEO and co-founder of Allium, stated that they apologize for the disruption caused to their customers. He emphasized that security measures and monitoring have been intensified to prevent similar events in the future.

The authentication process has become more complex, and company engineers have instructed users to revoke previous access keys and enable multi-factor authentication. Core services such as Allium Assistant and the model content protocol remain suspended. Raw blockchain data for Ethereum, Bitcoin, Solana, and Base on cloud platforms like Snowflake and Databricks is currently being validated to fill informational gaps.

Allium partner institutions have not been harmed, and no evidence of intrusion into the internal systems of companies like Stripe and Visa has been reported. This business successfully raised $40 million in a Series B funding round last June and covers the infrastructure of over 150 blockchains.