My main takeaway from this was where the hell are they getting that data? A little digging… apparently if you install Avast antivirus they're tracking all of this and selling /providing to Jumpshot - wow.

> Baker said Jumpshot’s data comes from 100 million devices worldwide, whose users have downloaded free security software from partner Avast. The devices include smartphones, laptops and tablets.

https://marketingland.com/jumpshot-makes-public-some-amazon-...