Your digital clone is made without permission!? Cookie's consent -RKB Radio / Koji Sakurai Insight | RKB Online

Shuichiro Kata (hereinafter referred to as Nagata): There is a small story well known in the digital industry before entering the main subject.An elderly man who recently started a personal computer consulted his son -in -law, saying, "If you open the net, you are in trouble because you are getting worse advertisements one after another."The son -in -law said, "That's because my father -in -law has seen such a page."Originally it seems to be a true story, that is, the data of what the person saw on the web was exchanged on the net without knowing it.

Kagata: The typical mechanism is "cookie". There are two types of cookies, one is the first party cookie and the other is a third -party cookie. The first is published by the website you saw, and the third is literally issued by third parties. Once you have logged in, you can open it even if you open it on the same smartphone or without an ID or password. Also, on the shopping site, the product in the cart remains once closed. This is the first party cookie's job, so to speak, it is a landmark that distinguishes the customer. Meanwhile, the third is a landmark on the advertising medium on the site, and advertisers can identify the visitors from the next. For example, those who look often at fashion pages are marked by various advertisers on them as "interested people", and even if they look at another site, the same advertisement is the same. It is listed.

Saki Takahashi (hereinafter Takahashi): When I was looking for a school bag two years ago, school bags came out one after another.

Kagata -eunaga: These data is accumulated more and more on the management side of the advertisement, so I am looking for a restaurant in Fukuoka on a gourmet site, and when I look closely at baseball match results and used car information, "I live in Fukuoka.I'm a baseball fan, I often eat out and buy a new car. "So is the school bag.Not only school bags, but probably things related to enrollment have appeared in ads.

Takahashi: The photo studio also came out.