Watching the Watchers.(The Technologist)

Byline: Christopher Werth

Right under Big Brother's nose, artist-hackers are using surveillance images for their own purposes.

Britain, somewhat proudly, has been crowned the most watched society in the world. The country boasts 4.2 million security cameras (one for every 14 people), a number expected to double in the next decade. A typical Londoner makes an estimated 300 closed-circuit television (CCTV) appearances a day, according to the British nonprofit Surveillance Studies Network, an average easily met in the short walk between Trafalgar Square and the Houses of Parliament. Public opinion on this state of affairs is generally positive, according to recent polls. And how useful is CCTV in busting bad guys? Not much, according to Scotland Yard. In terms of cost benefit, the enormous expenditure has done very little in actually preventing and solving crime.

Right under Big Brother's nose, a new class of guerrilla artists and hackers are commandeering the boring, grainy images of vacant parking lots and empty corridors for their own purposes. For about $80 at any electronics supply store and some technical know-how, it is possible to tap into London's CCTV hotspots with a simple wireless receiver (sold with any home-security camera) and a battery to power it. Dubbed "video sniffing," the pastime evolved out of the days before broadband became widely available, when "war-chalkers" scouted the city for unsecured Wi-Fi networks and marked them with chalk using special symbols. Sniffing is catching on in other parts of Europe, as well as in New York and Brazil, spread by a small but globally connected community of practitioners. "It's actually a really relaxing thing to do on a Sunday," says Joao Wilbert, a master's student in interactive media, who slowly paces the streets in London like a treasure hunter, carefully watching a tiny handheld monitor for something to flicker onto the screen.

These excursions pick up obscure, random shots from the upper corners of restaurants and hotel lobbies, or of a young couple shopping in a housewares department nearby. Eerily, baby cribs are the most common images. Wireless child monitors work on the same frequency as other surveillance systems, and are almost never encrypted or secured.

Given that sniffing is illegal, some artists have found another way to obtain security footage: they ask for it, in a letter along with a check for [pounds sterling]10. In making her film "Faceless," Austrian-born artist Manu Luksch made use of a little-known law, included within Britain's Data Protection Act, requiring CCTV operators to release a copy of their footage upon the request of anyone captured on their cameras. "Within the maximum period of 40 days I received some recordings in my mail," says Luksch. "And I thought, Wow, ...