Blockchain data provider Allium discloses security incident
Blockchain data infrastructure provider Allium has disclosed unauthorized access to certain systems on October 25, prompting customer notifications, an independent investigation, and the revocation of existing API keys.

Blockchain data infrastructure provider Allium, which serves institutional clients including Visa, Stripe, and Coinbase, disclosed that it identified unauthorized access to certain internal systems on October 25.[1][2][3]
In a statement shared on social media, Allium CEO and co-founder Ethan Chan said the company took immediate action to restrict access and secure its environment. Allium notified affected customers directly and engaged an independent cybersecurity firm to assist with the response and investigation. Chan noted that the firm is focusing on tightening authentication and monitoring controls and plans to share a summary of findings once the inquiry concludes.[3]
Core services, including the Allium App, Explorer, and Explorer APIs, have been brought back online, although certain features remain temporarily unavailable as recovery efforts continue. The full scope of the breach and whether customer data was exposed remain undisclosed. Meanwhile, existing API keys are being revoked, and access to data uploaded to the platform remains disabled, according to reports.[1][2][3]
The incident comes after Allium raised $40 million in Series B funding in June.[2][3]
Key facts
- Allium detected unauthorized access to certain systems on October 25.
- Allium notified affected customers directly and hired an independent cybersecurity firm to investigate.
- Core services, including the Allium App, Explorer, and Explorer APIs, have returned online, though some features remain unavailable.
- Existing Allium API keys are being revoked, and access to data uploaded to the platform remains disabled.
- The full scope of the breach and whether customer data was exposed have not been disclosed.
- Allium provides blockchain data services to clients including Visa, Stripe, and Coinbase.
- Allium raised $40 million in Series B funding earlier in the year.
Sources · 3 sources
- CB
Coin Bureau@coinbureauPost on X ·
⚠️ ALERT: Allium, the blockchain data provider serving Visa, Stripe and Coinbase, discloses a security breach into its systems. The company detected the breach on October 25, notified affected customers and brought in an independent cybersecurity firm. The full scope and whether customer data was exposed remain undisclosed. Core services are back online, but existing API keys are being revoked, and access to uploaded data remains disabled.
Open source - CB
Crypto Banter@crypto_banterPost on X ·
🚨DATA PROVIDER FOR VISA, STRIPE AND COINBASE DISCLOSES SECURITY BREACH! Allium detected unauthorized access to certain systems on October 25. The company notified affected customers and brought in an independent cybersecurity firm to investigate. Core services including the Allium App, Explorer, and APIs are back online, though some features remain unavailable. The firm raised $40 million in a Series B earlier this year.
Open source - WB
Wu Blockchain@WuBlockchainPost on X ·
Allium, Blockchain Data Provider Serving Visa, Stripe and Coinbase, Discloses Security Breach Blockchain data infrastructure provider Allium disclosed that it detected unauthorized access to certain systems on October 25. The company has notified affected customers and engaged an independent cybersecurity firm to investigate. Its core services, including the Allium App, Explorer, and Explorer APIs, are back online, although some features remain unavailable. Allium has not disclosed the full scope of the incident. The company raised $40 million in Series B funding in June and serves clients including Visa, Stripe, and Coinbase.
Open source

