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Online advertisers must not resurrect deleted computer cookies to reverse...

Online advertisers must not resurrect deleted computer cookies to reverse consumer privacy choices, the Interactive Advertising Bureau Europe said Wednesday. “Re-spawning” involves automatically re-establishing previously deleted cookies from back-up copies, the IAB said. It believes the practice is illegal under…

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EU and national data protection rules because it circumvents users’ expressed privacy choice not to have cookies on their computers. The issue has reportedly arisen in the U.S. but not in Europe, IAB Vice President Kimon Zorbas said in an interview. Nevertheless, IAB wants to send a clear signal to online advertisers, agencies and others about what’s acceptable and what isn’t, he said. IAB members work hard to protect lawful business practices and won’t allow individual companies to jeopardize the trust and confidence they've built with users, he said. IAB said it will work with its national associations to provide information on where to report instances of re-spawning and to facilitate referrals when complaints are filed. It wants incidents to be reported to national IABs or data protection authorities.