Stores may not follow phone passant

- Stores may the cell phones of people who go in or passing, not just follow. People must first be informed. In addition, a stored more data than necessary. The Dutch Data Protection Authority (CBP) that determined Tuesday.

Shops follow the wifi signal from the phones. They use the " Wi- tracking to measure how much people walk, how many go in and where they remain. " People come uninvited and ignorant in files which for example can be deduced that when they were and what their shopping behavior. That should not ", said the vice president of the privacy watchdog.

The company has promised behind the technology differently to work : information is encrypted and stored for up to 48 hours. CBP has not yet determined whether it is allowed.