Officials in Britain have asked an advertising firm to stop using hi-tech trash cans to monitor smartphone usage in the country's financial district; the Renew ad firm has been using these hi-tech trash receptacles to measure Wi-Fi signals used by smartphone users. The data picked up by the ad firm includes each handset's serial number and signal strength...Source: http://www.phonearena.com/news/British-officials-tell-ad-firm-to-stop-using-hi-tech-trash-cans-to-monitor-smartphone-users_id46341
