[asdkfjasl]

> the person who sold it to you (the provider) is liable

I don't think that's true unless they knew it had this behavior or were negligent in some way.

[marcosdumay]

That's how consumer law works nearly everywhere: every party has full (civil) liability over the outcome. The parties can then sue each other to settle it, without involvement of the consumer.

[AlexandrB]

> or were negligent in some way

I'm not sure what to call allowing any old shit to run in your app under the guise of ads other than negligent. The fact that it's so common should not be an excuse.