In the past, Yubikey manufacturer Yubico has shared similar criticisms of the use of standard microcontrollers in secure hardware devices. (bitcoinmagazine.com)
This feature could be a product category all its own; maybe BlackBerry should resurrect the pager, as a secure hardware device. (nbr.com)
Hardware Wallet: Hardware wallets are a special type of physical bitcoin wallets which will store the user's private keys in a secure hardware device. (coinpupil.com)