Blockstream Releases Jade Firmware 1.41, Confirms Immunity to Coldcard Vulnerability

Blockstream has confirmed that its Jade hardware wallet is unaffected by the random number generator vulnerability recently identified in Coldcard devices. Following extensive AI-assisted security reviews and manual audits, the company released firmware version 1.41. This update enhances stack protection, updates dependencies, and improves sensitive memory clearing processes. Blockstream stated that Jade utilizes multiple entropy sources—including hardware chip noise, timing data, and camera noise—mixed via SHA-512 to ensure robust seed generation. The team