Entries Tagged "law enforcement"

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Police Department Privilege Escalation

It’s easier than you think to create your own police department in the United States.

Yosef Maiwandi formed the San Gabriel Valley Transit Authority—a tiny, privately run nonprofit organization that provides bus rides to disabled people and senior citizens. It operates out of an auto repair shop. Then, because the law seems to allow transit companies to form their own police departments, he formed the San Gabriel Valley Transit Authority Police Department. As a thank you, he made Stefan Eriksson a deputy police commissioner of the San Gabriel Transit Authority Police’s anti-terrorism division, and gave him business cards.

Police departments like this don’t have much legal authority, they don’t really need to. My guess is that the name alone is impressive enough.

In the computer security world, privilege escalation means using some legitimately granted authority to secure extra authority that was not intended. This is a real-world counterpart. Even though transit police departments are meant to police their vehicles only, the title—and the ostensible authority that comes along with it—is useful elsewhere. Someone with criminal intent could easily use this authority to evade scrutiny or commit fraud.

Deal said that his agency has discovered that several railroad agencies around California have created police departments—even though the companies have no rail lines in California to patrol. The police certification agency is seeking to decertify those agencies because it sees no reason for them to exist in California.

The issue of private transit firms creating police agencies has in recent years been a concern in Illinois, where several individuals with criminal histories created railroads as a means of forming a police agency.

The real problem is that we’re too deferential to police power. We don’t know the limits of police authority, whether it be an airport policeman or someone with a business card from the “San Gabriel Valley Transit Authority Police Department.”

Posted on March 15, 2006 at 7:47 AMView Comments

More on Greek Wiretapping

Earlier this month I blogged about a wiretapping scandal in Greece.

Unknowns tapped the mobile phones of about 100 Greek politicians and offices, including the U.S. embassy in Athens and the Greek prime minister.

Details are sketchy, but it seems that a piece of malicious code was discovered by Ericsson technicians in Vodafone’s mobile phone software. The code tapped into the conference call system. It “conference called” phone calls to 14 prepaid mobile phones where the calls were recorded.

More details are emerging. It turns out that the “malicious code” was actually code designed into the system. It’s eavesdropping code put into the system for the police.

The attackers managed to bypass the authorization mechanisms of the eavesdropping system, and activate the “lawful interception” module in the mobile network. They then redirected about 100 numbers to 14 shadow numbers they controlled. (Here are translations of some of the press conferences with technical details. And here are details of the system used.)

There is an important security lesson here. I have long argued that when you build surveillance mechanisms into communication systems, you invite the bad guys to use those mechanisms for their own purposes. That’s exactly what happened here.

UPDATED TO ADD (3/2): From a reader: “I have an update. There is some news from the ‘Hellenic Authority for the Information and Communication Security and Privacy’ with a few facts and I got a rumor that there is a root backdoor in the telnetd of Ericssons AXE backdoor. (No, I can’t confirm the rumor.)”

Posted on March 1, 2006 at 8:04 AMView Comments

DNA Surveillance in the UK

Wholesale surveillance from the UK:

About 4,000 men working and living in South Croydon are being asked to voluntarily give their DNA as part of the hunt for a teenage model’s killer.

Well, sort of voluntarily:

“It is an entirely voluntary process. None of those DNA samples or finger prints will be used to check out any other unsolved crimes.

“Obviously if someone does refuse then each case will be reviewed on its own merits.

Did the detective chief inspector just threaten those 4,000 men? Sure seems that way to me.

Posted on February 28, 2006 at 7:31 AMView Comments

Police Cameras in Your Home

This is so nutty that I wasn’t even going to blog it. But too many of you are e-mailing the article to me.

Houston’s police chief on Wednesday proposed placing surveillance cameras in apartment complexes, downtown streets, shopping malls and even private homes to fight crime during a shortage of police officers.

“I know a lot of people are concerned about Big Brother, but my response to that is, if you are not doing anything wrong, why should you worry about it?” Chief Harold Hurtt told reporters Wednesday at a regular briefing.

One of the problems we have in the privacy community is that we don’t have a crisp answer to that question. Any suggestions?

Posted on February 23, 2006 at 1:12 PMView Comments

Photographing Airports

Patrick Smith, a former pilot, writes about his experiences—involving the police—taking pictures in airports:

He makes sure to remind me, just as his colleague in New Hampshire
had done, that next time I’d benefit from advance permission, and that “we live in a different world now.” Not to put undue weight on the cheap prose of patriotic convenience, but few things are more repellant than that oft- repeated catchphrase. There’s something so pathetically submissive about it—a sound bite of such defeat and capitulation. It’s also untrue; indeed we find ourselves in an altered way of life, though not for the reasons our protectors would have us think. We weren’t forced into this by terrorists, we’ve chosen it. When it comes to flying, we tend to hold the events of Sept. 11 as the be-all and end-all of air crimes, conveniently purging our memories of several decades’ worth of bombings and hijackings. The threats and challenges faced by airports aren’t terribly different from what they’ve always been. What’s different, or “too bad,” to quote the New Hampshire deputy, is our paranoid, overzealous reaction to those threats, and our amped-up obeisance to authority.

Posted on February 22, 2006 at 2:09 PMView Comments

The Militarization of Police Work

This was originally published in The Washington Post:

During the past 15 years, The Post and other media outlets have reported on the unsettling “militarization” of police departments across the country. Armed with free surplus military gear from the Pentagon, SWAT teams have multiplied at a furious pace. Tactics once reserved for rare, volatile situations such as hostage takings, bank robberies and terrorist incidents increasingly are being used for routine police work.

Eastern Kentucky University’s Peter Kraska—a widely cited expert on police militarization—estimates that SWAT teams are called out about 40,000 times a year in the United States; in the 1980s, that figure was 3,000 times a year. Most “call-outs” were to serve warrants on nonviolent drug offenders.

Posted on February 9, 2006 at 12:25 PMView Comments

The Topology of Covert Conflict

Interesting research paper by Shishir Nagaraja and Ross Anderson. Implications for warfare, terrorism, and peer-to-peer file sharing:

Abstract:

Often an attacker tries to disconnect a network by destroying nodes or edges, while the defender counters using various resilience mechanisms. Examples include a music industry body attempting to close down a peer-to-peer file-sharing network; medics attempting to halt the spread of an infectious disease by selective vaccination; and a police agency trying to decapitate a terrorist organisation. Albert, Jeong and Barabási famously analysed the static case, and showed that vertex-order attacks are effective against scale-free networks. We extend this work to the dynamic case by developing a framework based on evolutionary game theory to explore the interaction of attack and defence strategies. We show, first, that naive defences don’t work against vertex-order attack; second, that defences based on simple redundancy don’t work much better, but that defences based on cliques work well; third, that attacks based on centrality work better against clique defences than vertex-order attacks do; and fourth, that defences based on complex strategies such as delegation plus clique resist centrality attacks better than simple clique defences. Our models thus build a bridge between network analysis and evolutionary game theory, and provide a framework for analysing defence and attack in networks where topology matters. They suggest definitions of efficiency of attack and defence, and may even explain the evolution of insurgent organisations from networks of cells to a more virtual leadership that facilitates operations rather than directing them. Finally, we draw some conclusions and present possible directions for future research.

Posted on February 6, 2006 at 7:03 AMView Comments

Who Watches the Watchers?

One problem with cameras is that you can’t trust the watchers not to misuse them:

Two council CCTV camera operators have been jailed for spying on a naked woman in her own home.

Mark Summerton and Kevin Judge, from Sefton Council, Merseyside, trained a street camera into the woman’s flat.

[…]

The images from the camera, including the woman without her clothes on, were shown on a large plasma screen in the council’s CCTV control room in November 2004, Liverpool Crown Court heard.

Over several hours, she was filmed cuddling her boyfriend before undressing, using the toilet, having a bath and watching television dressed only in a towel.

Judge Gerald Clifton told the three men: “To dismiss what was happening as laddish behaviour, something that the 21st Century apparently condones, is absurd.

“You only have to read the impact statements of the lady to realise the harrowing effect that this had on her.

“Her life has almost been ruined, her self-confidence entirely destroyed by the thought that prying male eyes have entered her flat.”

Also, The Register reported on this.

Posted on January 16, 2006 at 12:00 PMView Comments

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Sidebar photo of Bruce Schneier by Joe MacInnis.