https://techcrunch.com/2018/07/25/google-takes-on-yubico-and-builds-its-own-hardware-security-keys/

Google today announced it is launching its own hardware security keys for two-factor authentication. These so-called Titan Security Keys will go up against similar keys from companies like Yubico, which Google has long championed as the de facto standard for hardware-based two-factor authentication for Gmail and other services.

The FIDO-compatible Titan keys will come in two versions. One with Bluetooth support for mobile devices and one that plugs directly into your computer’s USB port. In terms of looks and functionality, those keys look quite a lot like the existing keys from Yubico, though our understanding is that these are Google’s own designs.