Cookie tracking for targeting ads.If you can't opt -out ...
A while ago, it became a hot topic that US mobile carrier Belizon embedded codes in communication from smartphones and tablets to track customer behavior.This code, named UNIQUE Identifier Header (UIDH), is embedded in the header when accessing a website from Berizon's wireless network and is used to grasp the user's terminals and traffic.…For what?To display ads that are perfect for your smartphone.In other words, Verizon sells your information to advertisers.This code has caused a fierce debate that there is a risk of privacy infringement.
昨年、ベライゾンとAT&Tが顧客の閲覧したウェブサイトや、使用したアプリを追跡する意向がある、と報じられたとき、多くの反発する声があがりました。追跡されるだけでなく、オプトアウトしても追跡を逃れられない、というところも非難の的に。激しい批判を受けて、11月にはAT&Tが顧客を特定するコードの使用をやめましたが、ベライゾンは｢サイトや広告が個人を特定するものにはなりえない｣として、引き続きUIDHを使用しています。
Turn's "Zombie Cookie", which handles online advertising, has appeared while this discussion is being held.Turn uses Berizon UIDH to keep the user from erasing cookies.
By the way, the zombie cookie in question was revealed by Stanford University researcher Jonathan Mayer, and it was confirmed by Propublica verification.By the way, Turn and Verizon have a marketing partnership, and the anonymized information of Belizon customers is provided to Turn.Belizon also sponsored the connection between the two companies, "Bringing Sexy Back to Measurement" held in New York in April 2014.
Turn, which claims to be a "digital hub", is a huge back end of online advertising.When the Turn's tracking code is embedded, the Turn system will perform a "auction" for the advertising fee for the user in a few milliseconds.And the advertisement with the highest price is displayed on the user's screen.According to Turn, there are 2 million requests for online advertising display per second.
To make the auction work well, Turn identifies the user in cookies.Turn homemade tracking Cookie is trying to let many advertisers participate in an auction by analyzing users 'preferences, such as sports and shopping, based on the trend of users' web browsing.
Now, some users may want to disable or erase such cookies.However, Turn does not stop tracking even if it disappears."Some people think that if you erase cookies, you will not be tracked, but it's not exactly right," said Joshua Koran, a senior vice president of Turn's product management.To disable Turn's cookie, you need to install a Turn's opt -out cookie.Cookie to disable cookie ...?Furthermore, it is not to prevent this cookie and Turn from collecting information about yourself, but to prevent Turn from displaying targeting ads.
According to PROPUBLICA's verification, the tracking cookie is still working even if the Verizon user installs Turn's opt -out cookie.At first, Turn's representative explained that the action of this cookie was for the user.In case the user accidentally erases the opt -out cookie, he uses Berizon UIDH to ensure opt -out.
However, when I actually tried it, it doesn't look like it has been opt -out.Turn explained that the state was a bug and had already been restored, but after examining it again, it did not seem to be fixed.After all it doesn't disappear COOKIE ... zombies!
When I asked Berizon's public relations about the use of UIDH by Turn, he said, "I will verify the appropriate method while confirming the provided information."According to Max Ochoa, the person in charge, when he discussed the use of UIDH with Verizon, Belizon was "very satisfied."Now, Belizon may be working hard and thinking about excuses.
｢ユーザの選択を尊重すること、それは我々が強く望んでいることです｣とTurnのプライバシー担当責任者のOchoa氏は語っています。…うーん、何があってもオプトアウトさせない、という尊重の仕方もあるんですかねえ？Julia Angwin and Mike Tigas - Propublica - Gizmodo US [Original text]
(Conejo)
