From time to time i hear and read about the same kind of occurences:

A person talks about a certain thing (product or service) with another person and short time after the talk the person gets the advertising of the duskussed thing on the mobile or desktop device.

I heard and read about such occurences and didn't know what to think about it. Until some days ago i've personally experienced such occurence: discussed with my wife a certain product and some days after the talk got an advertising of it on Facebook.

My question: is it just an accident and there is no any cause to think about privat security issue or are browsers on mobile devices indeed analyze talking through allowed microphone access?

It is true, such issues, if really exist, are very difficult to research, because there is no direct relation between the mention and appearing of the advert. But, if one realizes this sequence of mention and advertising, it is very... alarming?

A person talks about a certain thing (product or service) with another person and a short time after the talk the person gets the advertising of the discussed thing on the mobile or desktop device.

I heard and read about such occurrences and didn't know what to think about it. Until some days ago I've personally experienced such occurrence: discussed with my wife a certain product and some days after the talk got advertising of it on Facebook.

My question: is it just an accident and there is not any cause to think about private security issue or are browsers on mobile devices indeed analyze talking through allowed microphone access?

It is true, such issues, if really exist, are very difficult to research, because there is no direct relation between the mention and appearing of the advert. But, if one realizes this sequence of mention and advertising, it is very... alarming?