Is it a supercookie or a privacy-preserving tracking technology?

28/06/2022 | WIRED

Vodafone and Deutsche Telekom are conducting a trial in Germany with TrustPid, which is a non-cookie/supercookie-based tracking system that allows mobile carriers to generate pseudo-anonymous tokens based on a user's IP addresses and phone numbers. So is it a cookie? It depends on who you ask. Simon Poulter, senior manager of corporate communications at Vodafone Group overseeing the trial, says, "Let me stress that the TrustPid service is not a supercookie." Vodafone also says that it has met the German Federal Commissioner for Data Protection and Freedom of Information (BfDI). However, BfDI spokesperson Christof Stein says that they were only informed. Furthermore, TrustPid is a UK company, making the Information Commissioner's Office (ICO) the responsible data authority. Debora Biasutti, a spokesperson for the ICO, told WIRED that "any proposal that continues to facilitate cross-web tracking without putting users firmly in control is unlikely to resolve the privacy issues prevalent in online advertising."

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