Opening unfamiler emails and visiting unknown websites
They help consumers identify the best product reviews from various sources.
They help prosecute companies that sell unsafe products to consumers.
I don't know technology, but using Satellite images, we are able to see that the continents once fitted into one 'jigsaw'. This shows that the continents must have drifted to its original place. Furthermore, Geothermal stations have pointed out convection currents in the Earth's mantle has caused the movement of crusts.
The student who uses macros for long words. They are most likely to pass words very easily because they have a macro. While not only saving time, also making a stunning performance as macros usually auto correct as well.
They'll post condolences messages etc which means many people will discover their business if they are looking for posts mentioning the deceased's name on social media.