A research team at Georgia Tech discovered a new threat called "Hot Pixels." It is a type of online attack where hackers can find out what websites have been visited by looking at the colors on the screen. They use special programs to do this and can find out the colors of most pixels. That is possible by studying patterns in how certain parts of the computer behave. Specifically, those parts that help produce images (GPUs) and compact computer systems (SoCs). Hot Pixels can extract information from a user's browser, including their browsing history, so business owners need to be more aware of these new cyber threats to avoid being affected by them.