Yes, and it’s not very difficult.

There are plenty of spy apps that a snooping ex or significant other can slip on to a phone. Mspy, WebWatcher, SpyToMobile and SpectorSoft’s eBlaster are a few popular spy apps. They provide access to your text messages, phone calls, photos, GPS location and even pull information from popular third-party messaging apps.

A snoop can see everything that’s going on with the phone by simply going to a special website. To learn more about how to block spy apps and what to do if you think one is installed on your phone, click here for step-by-step instructions.