Page 457

Neighborhood Security: Feeling vs. Reality

Research on why some neighborhoods feel safer:

Salesses and collaborators Katja Schechtner and César A. Hidalgo built an online comparison tool using Google Street View images to identify these often unseen triggers of our perception of place. Have enough people compare paired images of streets in New York or Boston, for instance, for the scenes that look more “safe” or “upper-class,” and eventually some patterns start to emerge.

“We found images with trash in it, and took the trash out, and we noticed a 30 percent increase in perception of safety,” Salesses says. “It’s surprising that something that easy had that large an effect.”

This also means some fairly cost-effective government interventions ­—collecting trash—could have a significant impact on how safe people feel in a neighborhood. “It’s like bringing a data source to something that’s always been subjective,” Salesses says.

I’ve written about the feeling and reality of security, and how they’re different. (That’s also the subject of this TEDx talk.) Yes, it’s security theater: things that make a neighborhood feel safer rather than actually safer. But when the neighborhood is actually safer than people think it is, this sort of security theater has value.

Original paper.

EDITED TO ADD (8/14): Two related links.

Posted on July 30, 2013 at 1:44 PMView Comments

Really Clever Bank Card Fraud

This is a really clever social engineering attack against a bank-card holder:

It all started, according to the police, on the Saturday night where one of this gang will have watched me take money from the cash point. That’s the details of my last transaction taken care of. Sinister enough, the thought of being spied on while you’re trying to enjoy yourself at a garage night at the Buffalo Bar, but not the worst of it.

The police then believe I was followed home, which is how they got my address.

As for the call: well, credit where it’s due, it’s pretty clever. If you call a landline it’s up to you to end the call. If the other person, the person who receives the call, puts down the receiver, it doesn’t hang up, meaning that when I attempted to hang up to go and find my bank card, the fraudster was still on the other end, waiting for me to pick up the phone and call “the bank”. As I did this, he played a dial tone down the line, and then a ring tone, making me think it was a normal call.

I thought this phone trick doesn’t work any more. It doesn’t work at my house—I just tried it. Maybe it still works in much of the UK.

Posted on July 30, 2013 at 7:33 AMView Comments

Obama's Continuing War Against Leakers

The Obama Administration has a comprehensive “insider threat” program to detect leakers from within government. This is pre-Snowden. Not surprisingly, the combination of profiling and “see something, say something” is unlikely to work.

In an initiative aimed at rooting out future leakers and other security violators, President Barack Obama has ordered federal employees to report suspicious actions of their colleagues based on behavioral profiling techniques that are not scientifically proven to work, according to experts and government documents.

The techniques are a key pillar of the Insider Threat Program, an unprecedented government-wide crackdown under which millions of federal bureaucrats and contractors must watch out for “high-risk persons or behaviors” among co-workers. Those who fail to report them could face penalties, including criminal charges.

Another critique.

Posted on July 29, 2013 at 6:28 AMView Comments

Secret Information Is More Trusted

This is an interesting, if slightly disturbing, result:

In one experiment, we had subjects read two government policy papers from 1995, one from the State Department and the other from the National Security Council, concerning United States intervention to stop the sale of fighter jets between foreign countries.

The documents, both of which were real papers released through the Freedom of Information Act, argued different sides of the issue. Depending on random assignment, one was described as having been previously classified, the other as being always public. Most people in the study thought that whichever document had been “classified” contained more accurate and well-reasoned information than the public document.

In another experiment, people read a real government memo from 1978 written by members of the National Security Council about the sale of fighter jets to Taiwan; we then explained that the council used the information to make decisions. Again, depending on random assignment, some people were told that the document had been secret and for exclusive use by the council, and that it had been recently declassified under the Freedom of Information Act. Others were told that the document had always been public.

As we expected, people who thought the information was secret deemed it more useful, important and accurate than did those who thought it was public. And people judged the National Security Council’s actions based on the information as more prudent and wise when they believed the document had been secret.

[…]

Our study helps explain the public’s support for government intelligence gathering. A recent poll by the Pew Research Center for the People and the Press reported that a majority of Americans thought it was acceptable for the N.S.A. to track Americans’ phone activity to investigate terrorism. Some frustrated commentators have concluded that Americans have much less respect for their own privacy than they should.

But our research suggests another conclusion: the secret nature of the program itself may lead the public to assume that the information it gathers is valuable, without even examining what that information is or how it might be used.

Original paper abstract; the full paper is behind a paywall.

Posted on July 26, 2013 at 6:25 AMView Comments

Details on NSA/FBI Eavesdropping

We’re starting to see Internet companies talk about the mechanics of how the US government spies on their users. Here, a Utah ISP owner describes his experiences with NSA eavesdropping:

We had to facilitate them to set up a duplicate port to tap in to monitor that customer’s traffic. It was a 2U (two-unit) PC that we ran a mirrored ethernet port to.

[What we ended up with was] a little box in our systems room that was capturing all the traffic to this customer. Everything they were sending and receiving.

Declan McCullagh explains how the NSA coerces companies to cooperate with its surveillance efforts. Basically, they want to avoid what happened with the Utah ISP.

Some Internet companies have reluctantly agreed to work with the government to conduct legally authorized surveillance on the theory that negotiations are less objectionable than the alternative—federal agents showing up unannounced with a court order to install their own surveillance device on a sensitive internal network. Those devices, the companies fear, could disrupt operations, introduce security vulnerabilities, or intercept more than is legally permitted.

“Nobody wants it on-premises,” said a representative of a large Internet company who has negotiated surveillance requests with government officials. “Nobody wants a box in their network…[Companies often] find ways to give tools to minimize disclosures, to protect users, to keep the government off the premises, and to come to some reasonable compromise on the capabilities.”

Precedents were established a decade or so ago when the government obtained legal orders compelling companies to install custom eavesdropping hardware on their networks.

And Brewster Kahle of the Internet Archive explains how he successfully fought a National Security Letter.

Posted on July 25, 2013 at 12:27 PMView Comments

Michael Hayden on the Effects of Snowden's Whistleblowing

Former NSA director Michael Hayden lists three effects of the Snowden documents:

  1. “…the undeniable operational effect of informing adversaries of American intelligence’s tactics, techniques and procedures.”
  2. “…the undeniable economic punishment that will be inflicted on American businesses for simply complying with American law.”
  3. “…the erosion of confidence in the ability of the United States to do anything discreetly or keep anything secret.”

It’s an interesting list, and one that you’d expect from a NSA person. Actually, the whole essay is about what you’d expect from a former NSA person.

My reactions:

  1. This, I agree, is actual damage. From what I can tell, Snowden has done his best to minimize it. And both the Guardian and the Washington Post refused to publish materials he provided, out of concern for US national security. Hayden believes that both the Chinese and the Russians have Snowden’s entire trove of documents, but I’m less convinced. Everyone is acting under the assumption that the NSA has compromised everything, which is probably a good assumption.
  2. Hayden has it backwards—this is good. I hope that companies that have cooperated with the NSA are penalized in the market. If we are to expect the market to solve any of this, we need the cost of cooperating to be greater than the cost of fighting. If we as consumers punish companies that have complied with the NSA, they’ll be less likely to roll over next time.
  3. In the long run, this might turn out to be a good thing, too. In the Internet age, secrecy is a lot harder to maintain. The countries that figure this out first will be the countries that do well in the coming decades.

And, of course, Hayden lists his “costs” without discussing the benefits. Exposing secret government overreach, a secret agency gone rogue, and a secret court that’s failing in its duties are enormously beneficial. Snowden has blown a whistle that long needed blowing—it’s the only way can ever hope to fix this. And Hayden completely ignores the very real question as to whether these enormous NSA data-collection programs provide any real benefits.

I’m also tired of this argument:

But it takes a special kind of arrogance for this young man to believe that his moral judgment on the dilemma suddenly trumps that of two (incredibly different) presidents, both houses of the U.S. Congress, both political parties, the U.S. court system and more than 30,000 of his co-workers.

It’s like President Obama claiming that the NSA programs are “transparent” because they were cleared by a secret court that only ever sees one side of the argument, or that Congress has provided oversight because a few legislators were allowed to know some of what was going on but forbidden from talking to anyone about it.

Posted on July 24, 2013 at 2:52 PMView Comments

Sidebar photo of Bruce Schneier by Joe MacInnis.