Burner phone number for sign-ups: what it is and when to use one

Burner, disposable, temporary: the same idea

All three mean a number you use once or for a short time, instead of your personal one. Online, it’s a rented number you read in a browser, so no extra phone or SIM is needed.

What it protects you from

• •Marketing texts and robocalls after a one-off sign-up
• •Data brokers linking your accounts through your number
• •Your number leaking in a breach of an app you barely used
• •Strangers finding your other profiles from a dating or marketplace app

Where it’s the wrong tool

Banks, your main email, government services and anything you’ll need to recover in a year. Those should stay on a number you keep, because the burner can’t receive reset codes once it’s gone.

Use it well

• •Add your own email to the account right away
• •Switch login codes to an authenticator app
• •Stick to the app’s own rules: a private number is about privacy, not about getting around limits