Nest, the Google/Alphabet property behind the , the , and the Nest Cam Indoor and , today introduced two-factor account authentication. This optional feature makes your devices more secure by requiring you to enter a unique verification code sent to your phone via text, as well as your regular password, every time you log in.
In October 2016, a widespread hacker-induced internet outage raised questions about the security measures smart home platforms employ to prevent such breaches. While Nest's two-factor authentication is only available on an opt-in basis, this added layer of security should make it a bit more difficult for hackers to access your Nest account.
To enable two-factor authentication, select the menu on the top left of the Nest app's home page. Then select Account Security and 2-step verification. Sign in to your account again, and two-factor auth should be up and running.