🚨 Chainstack reports customer data breach following cyberattack
Blockchain infrastructure provider Chainstack reported an intrusion into its systems between October 26 and 31, 2026. The attacker accessed a database containing customer names, email addresses, and password hashes. In a technical report, the company described an attack path through a Grafana test server and an inadequately secured internal tool.
Chainstack found no evidence that credentials for accessing blockchain nodes had been read, but recommends treating them as potentially compromised. Customers are advised to change their passwords, update access keys for nodes and APIs, and watch out for phishing.
The company said customer nodes and APIs were not altered and that the attacker’s access had been cut off. The incident does not mean that users’ cryptocurrency was confirmed stolen.
Sources: Chainstack (report dated November 3, updates on November 10–11), The Block, November 12, 2026.
#CryptoSecurity #Blockchain
Blockchain infrastructure provider Chainstack reported an intrusion into its systems between October 26 and 31, 2026. The attacker accessed a database containing customer names, email addresses, and password hashes. In a technical report, the company described an attack path through a Grafana test server and an inadequately secured internal tool.
Chainstack found no evidence that credentials for accessing blockchain nodes had been read, but recommends treating them as potentially compromised. Customers are advised to change their passwords, update access keys for nodes and APIs, and watch out for phishing.
The company said customer nodes and APIs were not altered and that the attacker’s access had been cut off. The incident does not mean that users’ cryptocurrency was confirmed stolen.
Sources: Chainstack (report dated November 3, updates on November 10–11), The Block, November 12, 2026.
#CryptoSecurity #Blockchain