Get the latest tech news
This handy Linux tool snitches on sneaky apps - here's why and how it's helpful
OpenSnitch makes it easy to track outgoing internet requests from installed apps, so you can take action if necessary.
Jack Wallen / Elyse Betters Picaro / ZDNETOpenSnitch is a Linux port of the popular MacOS app Little Snitch. However, if you spot an app that clearly shouldn't be reaching out to the network, you could also check the Hosts tab to see if there are any questionable domains listed. Jack Wallen/ZDNET If you spot an app that shouldn't be calling out to the internet, click the Rules button near the upper left of the window (the icon with the tiny + symbol).
Or read this on ZDNet