One of my favorite hardware security key vendors that I’ve reviewed here on The Gadgeteer is introducing a new Mobile SDK for iOS for developers. It allows any iOS mobile app to add support for hardware-based two-factor authentication (2FA) using YubiKey OTP over NFC. The awesome password manager software LastPass has released the latest version of its password management app with fully integrated support for the YubiKey NEO over NFC on iOS. For current LastPass users, the iOS application will receive an automatic update (version 4.2.7) via the App Store. You can find more information on Yubico.com.