Viruses operate covertly these days, hiding in the background instead of attracting attention. Luckily, there are tools to stop them.

1. Fire up Chrome and type 'chrome://flags/#side-by-side' into the address bar. Hit Enter, and you'll see the 'Split View' ...

Google Docs allows you to compare two documents on top of each other, highlighting the differences between them. To compare a pair of files, go to Tools > Compare documents > My Drive > select a ...