Hardware wallet manufacturer Keystone has suffered a major security crisis, as the compromise of its authentication key directly led to 18,835 hardware wallets being marked for destruction, while the personal information of nearly 26,000 users was exposed to risk.
The root of this security incident traces back to technical intrusion details disclosed on October 26, 2026. Keystone confirmed that attackers escalated access privileges through a vulnerability in a third-party data monitoring tool and then stole the core WebAuth key used to verify hardware authenticity. That key is permanently embedded during the device manufacturing stage and cannot be modified or deleted through software updates. This means attackers who possess the key could produce counterfeit devices capable of passing official authenticity checks, exposing unsuspecting buyers to an extremely high risk of asset theft.
After detecting abnormal activity on October 20, Keystone immediately shut down the vulnerable website function and launched a forensic-level investigation. Given the irrevocable nature of the key, Keystone decided to destroy all 18,835 devices in inventory that contained the compromised key and to suspend processing website orders that had not yet shipped, shifting instead to pre-orders until new products equipped with a new authentication key enter production. This supply chain adjustment not only affects the current delivery schedule but also raises market concerns about the circulation of counterfeit devices.
Beyond the technical intrusion, data management flaws further intensified the scale of the crisis. According to data compiled by Woofun AI, after reviewing 51,083 Shopify buyer records, 25,964 records were found to still contain sensitive personal information, including names, shipping addresses, contact details, and purchase history from 2024 to 2026. Keystone admitted that its automatic data deletion system malfunctioned, causing customer information not to be promptly erased after the required 180-day storage period. In addition, the investigation uncovered 12,873 unpaid order records, which may contain other sensitive information and have been included in the handling plan.
To address this compliance gap, Keystone has shortened the customer information storage period to 90 days and promised to complete processing of overdue customer data deletion requests submitted before October 24 by November 3. It is worth noting that the release of this incident analysis report follows the disclosure of a similar customer data leak by Boston-based hardware wallet manufacturer Foundation, highlighting widespread challenges in data governance across the industry.
Regarding user safety, Keystone explicitly stated that recovery phrases, private keys, wallet credentials, and payment information were not leaked, and it does not recommend that customers move cryptocurrency solely because of this incident. For devices delivered before the 20th and verified through identity checks, the company confirmed their safety; however, for devices produced afterward using the compromised key, even if they pass verification, additional confirmation through customer support is required. Keystone also warned users to be wary of fraudulent recall messages requesting the return of devices, and it has already submitted regulatory reports in the European Union, the United Kingdom, and other jurisdictions. It plans to launch a security vulnerability inquiry tool and conduct further audits.
Article author Jamie Redman published this report at 4:25 p.m. Eastern Time on October 26, 2026, when the price of Bitcoin was $79,784, down 0.87%, and the price of Ethereum was $2,311, down 1.62%. This incident echoes the Electrum wallet attack that occurred around the same time, which concealed Bitcoin theft by raising fees, once again warning users to be alert to the risk of malicious servers replacing legitimate payments. For a manufacturer whose goal is to eliminate third-party reliance, losing the key that safeguards hardware credibility undoubtedly constitutes a profound trust paradox.
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