Entries Tagged "geolocation"

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Detecting Nuclear Weapons Using the Cell Phone Network

Okay, this is clever:

Such a system could blanket the nation with millions of cell phones equipped with radiation sensors able to detect even light residues of radioactive material. Because cell phones already contain global positioning locators, the network of phones would serve as a tracking system, said physics professor Ephraim Fischbach. Fischbach is working with Jere Jenkins, director of Purdue’s radiation laboratories within the School of Nuclear Engineering.

[…]

Tiny solid-state radiation sensors are commercially available. The detection system would require additional circuitry and would not add significant bulk to portable electronic products, Fischbach said.

I’m not convinced it’s a good idea to deploy such a system, but I like the idea of piggy-backing a nationwide sensor network on top of our already existing cell phone infrastructure.

Posted on February 1, 2008 at 12:54 PM • View Comments

Direct Marketing Meets Wholesale Surveillance

A $100K National Science Foundation grant to Geosemble Technologies, Inc.

SBIR Phase I: Exploiting High-Resolution Imagery, Geospatial Data, and Online Sources to Automatically Identify Direct Marketing Leads

Abstract: This Small Business Innovation Research Phase I project will conduct a feasibility study to demonstrate that by combining currently available high-resolution imagery, geospatial data (e.g., parcel data or structure data), and other related online data sources (e.g., property tax data or census data), it is possible to automatically generate highly targeted direct marketing leads for a variety of markets. The plan is to approach this problem by (1) aligning existing geospatial sources with the high-resolution imagery in order to determine the exact location and determine the address of the parcels seen in the imagery, (2) extracting the relevant features from the imagery to provide appropriate leads, such as determining the presence or absence of a swimming pool, the type of roofing materials used, or what types of cars are parked in the driveway, and (3) bringing in other sources of data, such as property tax assessment data to provide additional context.

The primary focus of the phase I project will be to demonstrate the use of machine learning technology for identifying features in high-resolution imagery that can be used for direct marketing. High-resolution aerial imagery is now being widely collected and is available for low cost or in some cases is even free. The challenges are to first to align parcel data with the high resolution imagery to identify the exact address and boundaries of a property, and second to develop feature extraction techniques that can exploit the contextual information to accurately identify novel features, such as roofs, cars, pools, landscaping, etc., that can be used for direct marketing. The ability to accurately identify features in imagery and then relate them to specific properties as well as related sources of information will allow a targeted direct marketing product to be built. The end users of this product will be companies seeking to market products directly to residential consumers. This includes product and services relating to home improvement, both exterior and interior, as well as those products relating to residents of the home, that can be gleaned from imagery available for the parcel in question. This is a large market and includes everyone from home improvement stores to roofing companies, construction companies, automobile dealers, tree trimmers, landscapers, and pool construction companies. Beyond direct marketing, the technology can also be used for other applications that combine imagery, geospatial data, and structured information. For example, it could used for mosquito abatement, which is important to stop the spread of West Nile Virus, by identifying large pools of stagnant water, associating those hazards with the appropriate address, and then mailing abatement notifications to the residents.

Posted on June 19, 2007 at 3:52 PM • View Comments

Radio Transmitters Found in Canadian Coins

Radio transmitters have been found in Canadian coins:

Canadian coins containing tiny transmitters have mysteriously turned up in the pockets of at least three American contractors who visited Canada, says a branch of the U.S. Defense Department.

Security experts believe the miniature devices could be used to track the movements of defence industry personnel dealing in sensitive military technology.

Sounds implausible, really. There are far easier ways to track someone than to give him something he’s going to give away the next time he buys a cup of coffee. Like, maybe, by his cell phone.

And then we have this:

A report that some Canadian coins have been compromised by secretly embedded spy transmitters is overblown, according to a U.S. official familiar with the case.

“There is no story there,” the official, who asked not to be named, told The Globe and Mail.

He said that while some odd-looking Canadian coins briefly triggered suspicions in the United States, he said that the fears proved groundless: “We have no evidence to indicate anything connected with these coins poses a risk or danger.”

Take your pick. Either the original story was overblown, or those involved are trying to spin the news to cover their tracks. We definitely don’t have very many facts here.

EDITED TO ADD (1/18): The U.S. retracts the story.

Posted on January 11, 2007 at 12:07 PM • View Comments

Tracking Automobiles Through their Tires

Automobile tires are now being outfitted with RFID transmitters:

Schrader Bridgeport is the market leader in direct Tire Pressure Monitoring Systems. Direct TPMS use pressure sensors inside each tire to transmit data to a dashboard display alerting drivers to tire pressure problems.

I’ll bet anything you can track cars with them, just as you can track some joggers by their sneakers.

As I said before, the people who are designing these systems are putting “zero thought into security and privacy issues. Unless we enact some sort of broad law requiring companies to add security into these sorts of systems, companies will continue to produce devices that erode our privacy through new technologies. Not on purpose, not because they’re evil—just because it’s easier to ignore the externality than to worry about it.”

Posted on December 27, 2006 at 7:44 AM • View Comments

Tracking People by their Sneakers

Researchers at the University of Washington have demonstrated a surveillance system that automatically tracks people through the Nike+iPod Sport Kit. Basically, the kit contains a transmitter that you stick in your sneakers and a receiver you attach to your iPod. This allows you to track things like time, distance, pace, and calories burned. Pretty clever.

However, it turns out that the transmitter in your sneaker can be read up to 60 feet away. And because it broadcasts a unique ID, you can be tracked by it. In the demonstration, the researchers built a surveillance device (at a cost of about $250) and interfaced their surveillance system with Google Maps. Details are in the paper. Very scary.

This is a great demonstration for anyone who is skeptical that RFID chips can be used to track people. It’s a good example because the chips have no personal identifying information, yet can still be used to track people. As long as the chips have unique IDs, those IDs can be used for surveillance.

To me, the real significance of this work is how easy it was. The people who designed the Nike/iPod system put zero thought into security and privacy issues. Unless we enact some sort of broad law requiring companies to add security into these sorts of systems, companies will continue to produce devices that erode our privacy through new technologies. Not on purpose, not because they’re evil—just because it’s easier to ignore the externality than to worry about it.

Posted on December 12, 2006 at 1:11 PM • View Comments

Galileo Satellite Code Cracked

Anyone know more?

Members of Cornell’s Global Positioning System (GPS) Laboratory have cracked the so-called pseudo random number (PRN) codes of Europe’s first global navigation satellite, despite efforts to keep the codes secret. That means free access for consumers who use navigation devices—including handheld receivers and systems installed in vehicles—that need PRNs to listen to satellites.

Security by obscurity: it doesn’t work, and it’s a royal pain to recover when it fails.

Posted on July 11, 2006 at 11:30 AM • View Comments

Aircraft Locator a "Terrorist's Dream"

The movie plots keep coming and coming. Here’s my nomination for dumb movie plot of this week:

Skies ‘now terrorist’s dream’

Australia’s proposed new aviation tracking system would make it easier for terrorists to locate aircraft, aviation campaigner Dick Smith said today.

Mr Smith said a plan by Airservices Australia to replace radar tracking of planes with the Automatic Dependent Surveillance Broadcast (ADS ­ B) system would allow terrorists to track every aircraft in the sky.

“Government policy using conventional radar makes it almost impossible for a terrorist or a criminal to locate the position and identity of an aircraft,” Mr Smith said.

“With ADS ­ B it’s the opposite because all you need to track every aircraft is a small, non-directional aerial, worth $5.”

Under the present system, a terrorist can locate the position of an aircraft by looking up. And if a terrorist is smart enough to perform this intelligence-gathering exercise near an airport, he can locate the position of aircraft that are low to the ground, and easier to shoot at with missiles. Why are we worrying about telling terrorists where all the high-altitude hard-to-hit planes are?

Now I can invent a movie plot that has the terrorists needing to shoot down a particular plane because this or that famous personage is on it, but that’s a bit much.

Posted on May 29, 2006 at 12:00 PM • View Comments

Terrorism Risks of Google Earth

Sometimes I wonder about “security experts.” Here’s one who thinks Google Earth is a terrorism risk because it allows people to learn the GPS coordinates of soccer stadiums. (English blog entry on the topic here.)

Basically, Klaus Dieter Matschke is worried because Google Earth provides the location of buildings within 20 meters, whereas before coordinates had an error range of one kilometer. He’s worried that this information will provide terrorists with the exact target coordinates for missile attacks.

I have no idea how anyone could print this drivel. Anyone can attend a football game with a GPS receiver in his pocket and get the coordinates down to one meter. Or buy a map.

Google Earth is not the problem; the problem is the availability of short-range missiles on the black market.

Posted on April 11, 2006 at 6:52 AM • View Comments

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Sidebar photo of Bruce Schneier by Joe MacInnis.