On Thursday, several Framework customers said on social media that they had received an email from the company notifying them of the data breach. Framework computers are relatively niche products, but some estimates say the company sold hundreds of thousands of devices. According to the notification seen by TechCrunch, the company blamed the data breach on an upstream cyberattack at Metabase. In its email to customers, Framework also included the email Metabase sent to the company, which says hackers accessed Framework’s cloud instance. The computer maker said it investigated the incident and found that hackers had stolen its customers’ personal data, but did not include their payment information.