My son is an IT guy. He once told me that nothing is free on the internet, everything has it's price. If you are receiving any free services, than you're the actual product. Perhaps more accurately your data and usage is the product, being sold to a third party. Some people feel they have nothing to hide, and more power to you if you believe that. However I've been the focus of advertising targeted towards my internet searches both on the PC, and on my phone, which is a whole 'nother opportunity for security breaches.
No, I have not been drinking.