Cabot Circus is hardly my favourite place in Bristol. It’s an out-of-town shopping centre with associated multi-storey car park plonked at the inner city end of the M32. It consists of 3 floors full of identikit national chain stores, plus CCTV and surly security guards to track and/or keep out those who have no intention of buying overpriced, mass-produced consumer tat they probably don’t want, definitely don’t need and most likely cannot really afford.
Today I noticed another reason for avoiding Cabot Circus – mobile phone surveillance.
Note the exemplary use of newspeak: spying on your mobile is “in use at this site to improve our customer service“.
I’m not convinced by the bland assurance regarding personal data either, as will be explained below.
The Footpath technology in use in Cabot Circus has been developed by a company called Path Intelligence and is in use in a number of shopping centres around the UK, including Gunwharf Quays in Portsmouth, Princesshay in Exeter, the Buchanan Galleries in Glasgow, Bon Accord & St Nicholas in Aberdeen and The Centre, Livingston, all of which like Cabot Circus are operated by Land Securities Ltd. The surveillance system works through units placed in shops which detect the changing signals of mobile phones.
Unless people entering the shopping centre happen to see the warning signs (which are conveniently placed alongside lots of others telling the public what they’re not allowed to do, such as use skateboard, take photographs. Ed.) they’re probably unaware that their phones are being monitored.
According to Path Intelligence, the Footpath technology works as follows:
The vast majority of visitors to any given location now carry a mobile (cell) phone. To be able to make and receive calls, the telephone network must understand the phone’s geographical location. The technology behind this is complicated, but in basic terms, the phone and the network continuously ‘talk’ (ping) to each other (sending a unique signal), sending and updating information every time the location of the phone changes.
Footpath technology from Path Intelligence consists of discreet monitoring units able to read the anonymous signals that all mobile phones send. So we’re able to ‘see’ where the phone is (but not the data on it) and map its geographic movements from location to location accurately to within a few meters [sic]. In isolation the information isn’t very revealing but when aggregated, patterns and trends start to emerge. It’s those patterns and trends that are of interest in business planning.
The data collected is fed back to our data centers [sic] 24 hours a day, seven days a week, to be audited and have sophisticated statistical analysis applied. This results in continuously updated information on the flow of people in any monitored location.
As no source code is available for Footpath, no check can be made on its lack of ability to collect personal data or telephone numbers.
Concerns were expressed by Big Brother Watch about the tracking of shoppers’ mobiles 2 years ago.
At present the technology is not capable of recording phone numbers or personal information, but this will probably change as the system improves and as highlighted by Big Brother Watch:
However, as technology improves, those facilities will become more accessible, and consumers need to have faith that the law protects their privacy. Uncertainty over when and how technology is being used only undermines trust and confidence in any system using mobile phones.
To avoid being tracked, turn off your mobile when visiting Cabot Circus or any other shopping centre operated by Land Securities.