Avoid installing applications or downloading files from unknown sources, especially on smartphones or tablets, please read the permissions of the program before installing. Weather apps became extremely popular at first, but it was discovered that there were a lot of viruses in them. For example, there was a case when a weather app had an in-built trojan that collected the data from the owner's phone and sent it to the attackers. For the most part, they were interested in credit card data.

The popularity of weather apps is declining now. It's much easier and faster to check weather forecasts through a browser.