shodan - Tag Archive

Boston Bombs and the Billboard Problem

5 Replies Jonny Hankins

As I am sure many of you will already know, last week was a difficult one to say the least for my fellow citizens of Boston and Cambridge.

The events have caused a debate here though about the use of advertising technology. In the US many places host digital billboards. They are enormous, bright, attract attention and the content can be changed at will, using a computer and not a pole with wallpaper paste on it. Many change every 10 or 20 seconds, allowing great generation of revenue for both the publicity companies and the cities and states that license their use.

Digital Billboards In Use

Digital Billboards In Use

I first saw something like these while watching the Premier League, boards that changed by the side of the pitch through a disk system, but the modern equivalent are just like watching giant TV’s, in HD quality no less.

So why the debate? Well it turns out that the FBI have contracts with the largest billboard operators, and they can take over any number of the appliances and show what they want. In the case of Boston the contract is with Clear Channel Communications, and this allowed the FBI to show the photos of the two presumed bombers. Direct to the public marketing, for those of us still living without TV and smartphone (yes I am).

But many groups argue that the billboards themselves are dangerous and present a distraction to drivers, and many are placed in residential areas causing numerous complaints. Light pollution as much as skyline destruction are both problems when they are placed in residential or historic areas. The City of Los Angeles has in fact recently taken many of them offline on these grounds as this article explains, and pressure groups exist that campaign for their removal.

A Distraction?

A Distraction or an eyesore?

In all fairness they are not all trying to ban them, but to place them only in commercial districts where they do not cause distraction, but as you might imagine this does not go down too well. Distraction (or attention anyway) is after all one of their main goals.

But there is a lot of money involved. The city of Chicago hopes to raise $155 million by placing billboards throughout the city. The City recently approved a deal as this article explains.

The State of New Jersey has just struck down a ban on their use, again hoping to raise much needed funds.

The FBI argue that they are useful tools in crime prevention, stating that they have already apprehended 51 fugitives after posting their faces on billboards, and insist on their position as a public good. The debate rages and I am sure will continue on for some time.

The Scenic America website offers links to several safety studies regarding digital billboards for the interested reader.

On a lighter note and thinking about my post last week I wonder if they are on Shodan and easily hacked? That might be interesting.

What is Shodan?

18 Replies Jonny Hankins

EDITOR NOTE: This is Jonny’s 75th post on Technology Bloggers! Jonny was a complete newbie to blogging when he wrote his first post (about prosthetic limbs) but he is now somewhat of an expert – although he probably wouldn’t agree! – note by Christopher

Recently a couple of articles have appeared on large US websites about a type of search engine called Shodan. This search engine has been about for about 3 years, but it is different from Google and its cohorts in many ways. I looked at it and could not understand it at all, so what is it then and why is it causing such concern?

A screenshot of the Shodan website

Expose online devices

I have seen Shodan described as “The scariest search engine on the Internet”. This CNN money article explains that Shodan navigates the Internet’s back channels. It’s a kind of “dark” Google, looking for the servers, webcams, printers, routers and all the other stuff that is connected to and makes up the Internet.

What interest could there be in such capability? Well a lot apparently. The system allows an individual to find security cameras, cooling systems and all types of home control systems that we have connected to the Internet. (See Christopher’s series about his British Gas system here).

One serious problem is that many of these systems have little or no security because they are not perceived as threatened. Shodan searchers have however found control systems for a water park, a gas station, a hotel wine cooler and a crematorium. Cybersecurity researchers have even located command and control systems for nuclear power plants and a particle-accelerating cyclotron by using Shodan.

Hacking apart it turns out that the world is full of systems that are attached via router to the office computer and web server, and on to the outside world. Access for anyone who can find them and might like to turn of the refrigeration at the local ice rink, shut down a city’s traffic lights or just turn off a hydroelectric plant.

The Shodan system was designed to help police forces and others who might have legitimate need for such a tool, but what when it gets into the wrong hands. Security is non existent, just get your free account and do a few searches and see what you find.

See this Tech News World article for a further look at the ethical and practical issues that such a freely available product might bring

Regular readers will be aware of my interest in these types of problems through my work at the Bassetti Foundation for Responsible Innovation. I am not sure how the development and marketing of such a tool could be seen as responsible behaviour, but as I have been told on many occasions during interviews there are plenty of other ways of finding out such things. These types of systems are gathering already available information to make it usable, nothing more, so not doing anything wrong.

Do you agree?