A Gmail address is a simple, seemingly harmless tool anyone who has access to the internet can own.

Well, here are three reasons.

Remember, your Google account is what gives you authenticated access to Google’s numerous products and services.

Google search and other activities history on Android

Google has no way of knowing whether a Gmail account logged into your gear is yours or not.

So every app you’re using and the website you’re visiting could be all up for the taking.

On the surface, a stray Gmail account on your machine seems like nothing to worry about.

Google search and other activities history on Google

However, it could be a gaping security and privacy loophole.

It doesn’t matter if it’s the Gmail account of a trusted friend.

All they’d need to access everywhere you’ve visited (shops, airports, schools, etc.)

Explore Google Maps timeline

is to get into the Google Maps timeline of the Gmail account.

All it took was two minutes.

Location history using Google maps timeline

Explore your Google Map timeline

Find My Device feature

Find my device feature for Android