This is not necessarily a new problem. College students for years have been warned about employers digging through social media. This led to the rise of apps like Snapchat & more privacy controls with who you share your social data with.
I've been asked by public figures & businesses how to help clear their name after being involved in several negative news stories. My advice has always been to generate as many positive news stories and website posts as you can so that your negative ones are buried & hard to find.
I would imagine both of these tactics will continue to increase.