YouTube now lets you lock your account on a shared TV with a four-digit code

YouTube has introduced a setting called account lock, which puts a four-digit code in front of your profile in the YouTube app on a TV. The code is tied to that one device. So, you lock your account on the sitting room TV and nothing changes about how you sign in on your phone, your laptop or a second TV. YouTube publicised it this week, and it is going out to most smart TVs, streaming devices and game consoles globally.

It is not brand new. The help page documenting account lock first appeared around April 2026. What changed in September is the publicity.

Turning it on takes three steps on the TV you want to have a PIN lock:

1. Open your account in the left navigation,
2. select the Settings button directly under your account,
3. then follow the prompts to set your code.
4. There is no web or phone setting for it, and you repeat it on each TV you want locked.

Once it is on, anyone who selects your profile on the “Who’s watching” screen has to enter the code before the app opens your account. You type it with the remote, or unlock from the YouTube app on your phone instead, which spares you poking at an on-screen keypad.

What it actually protects

Your watch history, your search history, your subscriptions and the recommendations built from all of it. On a shared TV those are the things that can be affected. Your sister sees what you watched at 1am, your homepage fills with somebody else’s content, and the algorithm reshapes itself around a household instead of a person.

What it does not do is secure anything. YouTube is blunt about that in the help page: “Account lock does not serve as a replacement for an account password & does not authenticate any Google products.” Forget the code and you click “Forgot code?” on the lock screen, sign in with your Google account credentials, and the lock switches off for that device.

One TV per household is still the norm in Kenya, and the cheap end of the market is now Google TV, with TCL selling QLED sets from KES 16,500. That means the YouTube app is signed in to one person’s Google account and everybody uses it. Cousins, house help, kids, visitors. Account lock is the first setting that keeps them out of your profile without you signing out of the TV every night.

The TVs themselves are getting nosier at the same time. We covered how LG sets keep recording with the screen off and scan the home network. A four-digit code on your YouTube profile does nothing about any of that.

Check your TV’s YouTube settings today. If account lock is not there, the rollout is still moving, so try again in a few weeks.