A new tool lets you check if your phone number was one of the millions leaked in a Facebook data breach.

The details of more than 530 million people who use the social networking site were leaked in an online database.

According to researchers studying the breach, the database covers 533 million people in 106 countries.

That includes 11 million Facebook users in the UK.

Now, people can use a new tool from Have I Been Pwned to check if their phone numbers or emails were part of the giant leak.

Watford Observer: A new search tool lets you see if your account was leaked in a Facebook data breachA new search tool lets you see if your account was leaked in a Facebook data breach

Users simply search for their email or number on the website, by typing it into the main search bar.

After a few seconds, the website will search to find any breached accounts linked to the details entered.

The website will display how many, if at all, data breaches your details have been a part of.

It also offers tips to improve the security of your details.

Troy Hunt, a security expert who runs HaveIBeenPwned, told the BBC: “I wanted to ensure Have I Been Pwned could answer that question for everyone, not just a tiny slice of people."

Facebook has requested users input their phone numbers since 2011, citing security reasons.

It allows for “two-factor authentication”, an additional feature that sends a text to a user’s mobile whenever somebody logs into their account.

Facebook said it had "found and fixed" the breach more than a year and a half ago.

However, it has also been reported that Facebook’s own chief executive, Mark Zuckerberg, had his mobile number leaked.