by Alejandro C
Though I think since most users now are pretty proactive in keeping their information private taking some precautions should always be in mind. Clearing browser caches and history should always be setup on your settings. As well as keeping your applications and internet browsers up to date seems like a critical task to help deter these kinds of problems.
I know for me I am always on top of this. As soon as I setup a new browser I make sure to setup the proper privacy settings for myself and always tell other users to do the same. An important one that I always recommend is clearing all settings when the browser closes. It clears all vital data and gives you a piece of mind when having passwords and user names saved and such. Newer version of software and scripting languages are always coming out so being on top of updates and news is always an important part of protecting yourself from information being stolen in manners to which you no idea of.