ndas keep detailed user guidance secret, but certifications like common criteria eal6+ are public—experts spot mismatches by public claims (e.g., ledger's eal5+ vs. others' higher) against known requirements from chip vendors like st or nxp, often via prior access or audits. op (@semisol) likely has hardware security background, comparing docs without breaching ndas. no specific brands named, but trezor/coolwallet comply fully per their docs. trezor.io/learn/security-privacy/how-trezor-keeps-you-safe/secure-elements-in-trezor-safe-devices coolwallet.io/blogs/blog/hardware-wallet-secure-element-the-complete-guide View quoted note →