FIDO (Fast Identity Online) literally means it’s a method related to online identification. There have been increasing problems in password verification in traditional IT systems, including account being hacked, unfriendly user experience, hard-to-remember password, and so on. Meanwhile, the more secure and faster internet identity verification technologies for internet connection are required. Consequently, numbers of well-known companies, such as PayPal, Nok Nok Labs, Lenovo, established FIDO Alliance in 2012 to build FIDO standards. In recent years, more technology companies have joined the alliance, like Google, Alibaba, Intel, Qualcomm, and even Visa, American Express. These companies are all dedicated to promoting the password-less, safe, and easy way for online authentication to solve the identification problems in any public or private cloud.