Hackers stole personal details of people using Trezor hardware wallets in what was described as the second attack on cold storage providers in two weeks. The breach affects customer information rather than the wallets themselves, highlighting how offline crypto custody tools can still expose users through weaknesses in surrounding systems such as vendor databases, support platforms, or mailing infrastructure. The incident adds to concerns that holders using cold wallets for stronger asset protection may remain vulnerable to phishing, identity targeting, and other follow-on attacks when personal data is compromised.