How Do Physical Security Keys Work With Phones?

A strong password is one way to have online security. Enabling 2-factor authentication is a step ahead, whereas a physical security key is the most compatible and secure option. Physical security keys for phones are hardware-based two-factor authentication (2FA)

Physical Security Keys for Smartphones 

Physical security keys are small in size and can easily fit in any keychain, which can then be connected to your phone through Bluetooth technology or physically plugging it into your phone’s charging port. 


With the help of physical security keys, you will be notified if someone from an unrecognized browser or mobile device tries to access your online accounts. They will be asked to confirm the access with the key, which the attacker won’t have. Physical security keys are strongly recommended for tighter security. 


Being sensible and conscious of the safety of your online accounts is important. Accounts like Google Account or Dropbox usually have a wealth of information. You might want to take additional steps to secure them. Hardware-based two-factor authentication provides the utmost protection to your online life. 

Benefits of Physical Security Keys

Physical security keys are easy to use, stronger than SMS-based two-factor authentication, have less hassle, safeguard you from phishing attacks, and are cheap. They are available in several formats: 

  • USB-A
  • USB-C
  • Keys that use Bluetooth
  • Lightning for iPhone users

Android Security Keys

Android users have one more option for phones running on Android 7.0 or higher. Google has released a new security feature in beta. Android devices that qualify can now operate just like 2FA-USB based security keys. It requires Bluetooth for connection. 


Cell phone security has been a threat for years. It is wise to establish physical security keys to mitigate this threat. For more information on physical security, take a look at the rest of SIA Online

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