Entries Tagged "mitigation"

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First Responders

I live in Minneapolis, so the collapse of the Interstate 35W bridge over the Mississippi River earlier this month hit close to home, and was covered in both my local and national news.

Much of the initial coverage consisted of human interest stories, centered on the victims of the disaster and the incredible bravery shown by first responders: the policemen, firefighters, EMTs, divers, National Guard soldiers and even ordinary people, who all risked their lives to save others. (Just two weeks later, three rescue workers died in their almost-certainly futile attempt to save six miners in Utah.)

Perhaps the most amazing aspect of these stories is that there’s nothing particularly amazing about it. No matter what the disaster—hurricane, earthquake, terrorist attack—the nation’s first responders get to the scene soon after.

Which is why it’s such a crime when these people can’t communicate with each other.

Historically, police departments, fire departments and ambulance drivers have all had their own independent communications equipment, so when there’s a disaster that involves them all, they can’t communicate with each other. A 1996 government report said this about the first World Trade Center bombing in 1993: “Rescuing victims of the World Trade Center bombing, who were caught between floors, was hindered when police officers could not communicate with firefighters on the very next floor.”

And we all know that police and firefighters had the same problem on 9/11. You can read details in firefighter Dennis Smith’s book and 9/11 Commission testimony. The 9/11 Commission Report discusses this as well: Chapter 9 talks about the first responders’ communications problems, and commission recommendations for improving emergency-response communications are included in Chapter 12 (pp. 396-397).

In some cities, this communication gap is beginning to close. Homeland Security money has flowed into communities around the country. And while some wasted it on measures like cameras, armed robots and things having nothing to do with terrorism, others spent it on interoperable communications capabilities. Minnesota did that in 2004.

It worked. Hennepin County Sheriff Rich Stanek told the St. Paul Pioneer-Press that lives were saved by disaster planning that had been fine-tuned and improved with lessons learned from 9/11:

“We have a unified command system now where everyone—police, fire, the sheriff’s office, doctors, coroners, local and state and federal officials—operate under one voice,” said Stanek, who is in charge of water recovery efforts at the collapse site.

“We all operate now under the 800 (megahertz radio frequency system), which was the biggest criticism after 9/11,” Stanek said, “and to have 50 to 60 different agencies able to speak to each other was just fantastic.”

Others weren’t so lucky. Louisiana’s first responders had catastrophic communications problems in 2005, after Hurricane Katrina. According to National Defense Magazine:

Police could not talk to firefighters and emergency medical teams. Helicopter and boat rescuers had to wave signs and follow one another to survivors. Sometimes, police and other first responders were out of touch with comrades a few blocks away. National Guard relay runners scurried about with scribbled messages as they did during the Civil War.

A congressional report on preparedness and response to Katrina said much the same thing.

In 2004, the U.S. Conference of Mayors issued a report on communications interoperability. In 25 percent of the 192 cities surveyed, the police couldn’t communicate with the fire department. In 80 percent of cities, municipal authorities couldn’t communicate with the FBI, FEMA and other federal agencies.

The source of the problem is a basic economic one, called the collective action problem. A collective action is one that needs the coordinated effort of several entities in order to succeed. The problem arises when each individual entity’s needs diverge from the collective needs, and there is no mechanism to ensure that those individual needs are sacrificed in favor of the collective need.

Jerry Brito of George Mason University shows how this applies to first-responder communications. Each of the nation’s 50,000 or so emergency-response organizations—local police department, local fire department, etc.—buys its own communications equipment. As you’d expect, they buy equipment as closely suited to their needs as they can. Ensuring interoperability with other organizations’ equipment benefits the common good, but sacrificing their unique needs for that compatibility may not be in the best immediate interest of any of those organizations. There’s no central directive to ensure interoperability, so there ends up being none.

This is an area where the federal government can step in and do good. Too much of the money spent on terrorism defense has been overly specific: effective only if the terrorists attack a particular target or use a particular tactic. Money spent on emergency response is different: It’s effective regardless of what the terrorists plan, and it’s also effective in the wake of natural or infrastructure disasters.

No particular disaster, whether intentional or accidental, is common enough to justify spending a lot of money on preparedness for a specific emergency. But spending money on preparedness in general will pay off again and again.

This essay originally appeared on Wired.com.

EDITED TO ADD (7/13): More research.

Posted on August 23, 2007 at 3:23 AMView Comments

Avian Flu and Disaster Planning

If an avian flu pandemic broke out tomorrow, would your company be ready for it?

Computerworld published a series of articles on that question last year, prompted by a presentation analyst firm Gartner gave at a conference last November. Among Gartner’s recommendations: “Store 42 gallons of water per data center employee—enough for a six-week quarantine—and don’t forget about food, medical care, cooking facilities, sanitation and electricity.”

And Gartner’s conclusion, over half a year later: Pretty much no organizations are ready.

This doesn’t surprise me at all. It’s not that organizations don’t spend enough effort on disaster planning, although that’s true; it’s that this really isn’t the sort of disaster worth planning for.

Disaster planning is critically important for individuals, families, organizations large and small, and governments. For the individual, it can be as simple as spending a few minutes thinking about how he or she would respond to a disaster. For example, I’ve spent a lot of time thinking about what I would do if I lost the use of my computer, whether by equipment failure, theft or government seizure. As a result, I have a pretty complex backup and encryption system, ensuring that 1) I’d still have access to my data, and 2) no one else would. On the other hand, I haven’t given any serious thought to family disaster planning, although others have.

For an organization, disaster planning can be much more complex. What would it do in the case of fire, flood, earthquake, and so on? How would its business survive? The resultant disaster plan might include backup data centers, temporary staffing contracts, planned degradation of services, and a host of other products and service—and consultants to tell you how to use it all.

And anyone who does this kind of thing knows that planning isn’t enough: Testing your disaster plan is critical. Far too often the backup software fails when it has to do an actual restore, or the diesel-powered emergency generator fails to kick in. That’s also the flaw with the emergency kit suggestions I linked to above; if you don’t know how to use a compass or first-aid kit, having one in your car won’t do you much good.

But testing isn’t just valuable because it reveals practical problems with a plan. It also has enormous ancillary benefits for your organization in terms of communication and team building. There’s nothing like a good crisis to get people to rely on each other. Sometimes I think companies should forget about those team-building exercises that involve climbing trees and building fires, and instead pretend that a flood has taken out the primary data center.

It really doesn’t matter what disaster scenario you’re testing. The real disaster won’t be like the test, regardless of what you do, so just pick one and go. Whether you’re an individual trying to recover from a simulated virus attack, or an organization testing its response to a hypothetical shooter in the building, you’ll learn a lot about yourselves and your organization, as well as your plan.

There is a sweet spot, though, in disaster preparedness. Some disasters are too small or too common to worry about. (“We’re out of paper clips!? Call the Crisis Response Team together. I’ll get the Paper Clip Shortage Readiness Program Directive Manual Plan.”) And others are too large or too rare.

It makes no sense to plan for total annihilation of the continent, whether by nuclear or meteor strike: that’s obvious. But depending on the size of the planner, many other disasters are also too large to plan for. People can stockpile food and water to prepare for a hurricane that knocks out services for a few days, but not for a Katrina-like flood that knocks out services for months. Organizations can prepare for losing a data center due to a flood, fire, or hurricane, but not for a Black-Death-scale epidemic that would wipe out a third of the population. No one can fault bond trading firm Cantor Fitzgerald, which lost two thirds of its employees in the 9/11 attack on the World Trade Center, for not having a plan in place to deal with that possibility.

Another consideration is scope. If your corporate headquarters burns down, it’s actually a bigger problem for you than a citywide disaster that does much more damage. If the whole San Francisco Bay Area were taken out by an earthquake, customers of affected companies would be far more likely to forgive lapses in service, or would go the extra mile to help out. Think of the nationwide response to 9/11; the human “just deal with it” social structures kicked in, and we all muddled through.

In general, you can only reasonably prepare for disasters that leave your world largely intact. If a third of the country’s population dies, it’s a different world. The economy is different, the laws are different—the world is different. You simply can’t plan for it; there’s no way you can know enough about what the new world will look like. Disaster planning only makes sense within the context of existing society.

What all of this means is that any bird flu pandemic will very likely fall outside the corporate disaster-planning sweet spot. We’re just guessing on its infectiousness, of course, but (despite the alarmism from two and three years ago), likely scenarios are either moderate to severe absenteeism because people are staying home for a few weeks—any organization ought to be able to deal with that—or a major disaster of proportions that dwarf the concerns of any organization. There’s not much in between.

Honestly, if you think you’re heading toward a world where you need to stash six weeks’ worth of food and water in your company’s closets, do you really believe that it will be enough to see you through to the other side?

A blogger commented on what I said in one article:

Schneier is using what I would call the nuclear war argument for doing nothing. If there’s a nuclear war nothing will be left anyway, so why waste your time stockpiling food or building fallout shelters? It’s entirely out of your control. It’s someone else’s responsibility. Don’t worry about it.

Almost. Bird flu, pandemics, and disasters in general—whether man-made like 9/11, natural like bird flu, or a combination like Katrina—are definitely things we should worry about. The proper place for bird flu planning is at the government level. (These are also the people who should worry about nuclear and meteor strikes.) But real disasters don’t exactly match our plans, and we are best served by a bunch of generic disaster plans and a smart, flexible organization that can deal with anything.

The key is preparedness. Much more important than planning, preparedness is about setting up social structures so that people fall into doing something sensible when things go wrong. Think of all the wasted effort—and even more wasted desire—to do something after Katrina because there was no way for most people to help. Preparedness is about getting people to react when there’s a crisis. It’s something the military trains its soldiers for.

This advice holds true for organizations, families, and individuals as well. And remember, despite what you read about nuclear accidents, suicide terrorism, genetically engineered viruses and mutant man-eating badgers, you live in the safest society in the history of mankind.

This essay originally appeared in Wired.com.

EDITED TO ADD (8/1): A good rebuttal.

Posted on July 26, 2007 at 7:14 AMView Comments

Tactics, Targets, and Objectives

If you encounter an aggressive lion, stare him down. But not a leopard; avoid his gaze at all costs. In both cases, back away slowly; don’t run. If you stumble on a pack of hyenas, run and climb a tree; hyenas can’t climb trees. But don’t do that if you’re being chased by an elephant; he’ll just knock the tree down. Stand still until he forgets about you.

I spent the last few days on safari in a South African game park, and this was just some of the security advice we were all given. What’s interesting about this advice is how well-defined it is. The defenses might not be terribly effective—you still might get eaten, gored or trampled—but they’re your best hope. Doing something else isn’t advised, because animals do the same things over and over again. These are security countermeasures against specific tactics.

Lions and leopards learn tactics that work for them, and I was taught tactics to defend myself. Humans are intelligent, and that means we are more adaptable than animals. But we’re also, generally speaking, lazy and stupid; and, like a lion or hyena, we will repeat tactics that work. Pickpockets use the same tricks over and over again. So do phishers, and school shooters. If improvised explosive devices didn’t work often enough, Iraqi insurgents would do something else.

So security against people generally focuses on tactics as well.

A friend of mine recently asked me where she should hide her jewelry in her apartment, so that burglars wouldn’t find it. Burglars tend to look in the same places all the time—dresser tops, night tables, dresser drawers, bathroom counters—so hiding valuables somewhere else is more likely to be effective, especially against a burglar who is pressed for time. Leave decoy cash and jewelry in an obvious place so a burglar will think he’s found your stash and then leave. Again, there’s no guarantee of success, but it’s your best hope.

The key to these countermeasures is to find the pattern: the common attack tactic that is worth defending against. That takes data. A single instance of an attack that didn’t work—liquid bombs, shoe bombs—or one instance that did—9/11—is not a pattern. Implementing defensive tactics against them is the same as my safari guide saying: “We’ve only ever heard of one tourist encountering a lion. He stared it down and survived. Another tourist tried the same thing with a leopard, and he got eaten. So when you see a lion….” The advice I was given was based on thousands of years of collective wisdom from people encountering African animals again and again.

Compare this with the Transportation Security Administration’s approach. With every unique threat, TSA implements a countermeasure with no basis to say that it helps, or that the threat will ever recur.

Furthermore, human attackers can adapt more quickly than lions. A lion won’t learn that he should ignore people who stare him down, and eat them anyway. But people will learn. Burglars now know the common “secret” places people hide their valuables—the toilet, cereal boxes, the refrigerator and freezer, the medicine cabinet, under the bed—and look there. I told my friend to find a different secret place, and to put decoy valuables in a more obvious place.

This is the arms race of security. Common attack tactics result in common countermeasures. Eventually, those countermeasures will be evaded and new attack tactics developed. These, in turn, require new countermeasures. You can easily see this in the constant arms race that is credit card fraud, ATM fraud or automobile theft.

The result of these tactic-specific security countermeasures is to make the attacker go elsewhere. For the most part, the attacker doesn’t particularly care about the target. Lions don’t care who or what they eat; to a lion, you’re just a conveniently packaged bag of protein. Burglars don’t care which house they rob, and terrorists don’t care who they kill. If your countermeasure makes the lion attack an impala instead of you, or if your burglar alarm makes the burglar rob the house next door instead of yours, that’s a win for you.

Tactics matter less if the attacker is after you personally. If, for example, you have a priceless painting hanging in your living room and the burglar knows it, he’s not going to rob the house next door instead—even if you have a burglar alarm. He’s going to figure out how to defeat your system. Or he’ll stop you at gunpoint and force you to open the door. Or he’ll pose as an air-conditioner repairman. What matters is the target, and a good attacker will consider a variety of tactics to reach his target.

This approach requires a different kind of countermeasure, but it’s still well-understood in the security world. For people, it’s what alarm companies, insurance companies and bodyguards specialize in. President Bush needs a different level of protection against targeted attacks than Bill Gates does, and I need a different level of protection than either of them. It would be foolish of me to hire bodyguards in case someone was targeting me for robbery or kidnapping. Yes, I would be more secure, but it’s not a good security trade-off.

Al-Qaida terrorism is different yet again. The goal is to terrorize. It doesn’t care about the target, but it doesn’t have any pattern of tactic, either. Given that, the best way to spend our counterterrorism dollar is on intelligence, investigation and emergency response. And to refuse to be terrorized.

These measures are effective because they don’t assume any particular tactic, and they don’t assume any particular target. We should only apply specific countermeasures when the cost-benefit ratio makes sense (reinforcing airplane cockpit doors) or when a specific tactic is repeatedly observed (lions attacking people who don’t stare them down). Otherwise, general countermeasures are far more effective a defense.

This essay originally appeared on Wired.com.

EDITED TO ADD (6/14): Learning behavior in tigers.

Posted on May 31, 2007 at 6:11 AMView Comments

London's Dirty Bomb Tests

London is running a dirty-bomb drill. Mostly a movie-plot threat, but these sorts of drills are useful, regardless of the scenario.

I agree with this:

As ever, plain old explosives are the big worry. As for chemicals, compare the effects of the Tokyo subway gas attack (10 terrorists, five attacks each involving 1kg of hard-to-get sarin nerve gas, 12 dead total) with a typical backpack-bomb attack (London 7/7: four terrorists, four simple home made devices, 52 dead). Only a stupid attacker would bother with chemicals. Real pros like the IRA, for instance, never have.

Although with a dirty bomb, the media-inspired panic would certainly be a huge factor.

Posted on May 21, 2007 at 6:34 AMView Comments

Least Risk Bomb Location

This fascinating tidbit is from Aviation Week and Space Technology (April 9, 2007, p. 21), in David Bond’s “Washington Outlook” column (unfortunately, not online).

Need to Know

Security and society’s litigious bent combine to make airlines unsuited for figuring out the best place to put a suspected explosive device discovered during a flight, AirTran Airways tells the FAA (Federal Aviation Administration). Commenting on a proposed rule that would require, among other things, designation of a “least risk bomb location” (LRBL)—the place on an aircraft where a bomb would do the least damage if it exploded—AirTran engineering director Rick Shideler says it’s hard for airlines to get aircraft design information related to such a location because of agreements between manufacturers and the Homeland Security Department. The carrier got LRBL information for its 717s and 737s from Boeing but can’t find out why the locations were chosen, “or even who specifically picked them,” because of liability laws.

I’d never heard of an LRBL before, but the FAA has public proposed guidelines on them. Apparently flight crews are trained to stash suspicious objects there.

But liability seems to be getting in the way of security and common sense here. It seems reasonable that an airline’s engineering director should be allowed to understand the technical reasoning behind the choice of LRBL, and maybe even give the manufacturer feedback on it.

EDITED TO ADD (4/21): Comment (below) from a pilot: The designation of a “least risk bomb location” is nothing new. All planes have a designated area where potentially dangerous packages should be placed. Usually it’s in the back, adjacent to a door. There are a slew of procedures to be followed if an explosive device is found on board: depressurizing the plane, moving the item to the LRBL, and bracing/smothering it with luggage and other dense materials so that the force of the blast is directed outward, through the door.

Posted on April 20, 2007 at 1:39 PMView Comments

Consequences of a Nuclear Explosion in an American City

This paper, from February’s International Journal of Health Geographics, (abstract here), analyzes the consequences of a nuclear attack on several American cities and points out that burn unit capacity nationwide is far too small to accommodate the victims. It says just training people to flee crosswind could greatly reduce deaths from fallout.

Results

The effects of 20 kiloton and 550 kiloton nuclear detonations on high priority target cities are presented for New York City, Chicago, Washington D.C. and Atlanta. Thermal, blast and radiation effects are described, and affected populations are calculated using 2000 block level census data. Weapons of 100 Kts and up are primarily incendiary or radiation weapons, able to cause burns and start fires at distances greater than they can significantly damage buildings, and to poison populations through radiation injuries well downwind in the case of surface detonations. With weapons below 100 Kts, blast effects tend to be stronger than primary thermal effects from surface bursts. From the point of view of medical casualty treatment and administrative response, there is an ominous pattern where these fatalities and casualties geographically fall in relation to the location of hospital and administrative facilities. It is demonstrated that a staggering number of the main hospitals, trauma centers, and other medical assets are likely to be in the fatality plume, rendering them essentially inoperable in a crisis.

Conclusion

Among the consequences of this outcome would be the probable loss of command-and-control, mass casualties that will have to be treated in an unorganized response by hospitals on the periphery, as well as other expected chaotic outcomes from inadequate administration in a crisis. Vigorous, creative, and accelerated training and coordination among the federal agencies tasked for WMD response, military resources, academic institutions, and local responders will be critical for large-scale WMD events involving mass casualties.

I’ve long said that emergency response is something we should be spending money on. This kind of analysis is both interesting and helpful.

A commentary.

Posted on April 6, 2007 at 10:24 AMView Comments

JavaScript Hijacking

Interesting paper on JavaScript Hijacking: a new type of eavesdropping attack against Ajax-style Web applications. I’m pretty sure it’s the first type of attack that specifically targets Ajax code. The attack is possible because Web browsers don’t protect JavaScript the same way they protect HTML; if a Web application transfers confidential data using messages written in JavaScript, in some cases the messages can be read by an attacker.

The authors show that many popular Ajax programming frameworks do nothing to prevent JavaScript hijacking. Some actually require a programmer to create a vulnerable server in order to function.

Like so many of these sorts of vulnerabilities, preventing the class of attacks is easy. In many cases, it requires just a few additional lines of code. And like so many software security problems, programmers need to understand the security implications of their work so that they can mitigate the risks they face. But my guess is that JavaScript hijacking won’t be solved so easily, because programmers don’t understand the security implications of their work and won’t prevent the attacks.

Posted on April 2, 2007 at 3:45 PMView Comments

Sidebar photo of Bruce Schneier by Joe MacInnis.