A dozen of London’s more than 100 recycling bins fitted with digital screens were tracking each phone that connects to them with WiFi. The technology allows advertisers to deduce whether the same phone – although not necessarily the same person – is passing by. The City of London Corporation today demanded that the technology was turned off, having previously reported itself to the Information Commissioner. A spokesman for the regulator, the Information Commissioner’s Office, said “Any technology that involves the processing of personal information must comply with the Data Protection Act. We are aware of the concerns being raised over the use of these bins and will be making enquiries to establish what action, if any, is required.” First reported by Qz.com, the bins were run by London firm Renew, which sells advertising space on the internet-connected bins.