You are shopping online for some new running shoes at a national sporting goods retailer. You put a pair of Adidas in your cart and move on to other sites. Within minutes you are seeing ads for the exact shoe style offered from Amazon.com, and then again, when you log into Facebook. What is going on$?$

You$$ve been involved in a DoS attack

You are a victim of a Trojan

Russian Hackers

The sporting goods retailer has data$-$selling deals set up with major ecommerce and social media providers that allow for almost instant sharing of your personal information