Murderous organizations have increased in size and scope; they are more daring, they are served by the most terrible weapons offered by modern science, and the world is nowadays threatened by new forces which, if recklessly unchained, may some day wreck universal destruction. The Orsini bombs were mere children's toys compared with the later developments of infernal machines. Between 1858 and 1898 the dastardly science of destruction had made rapid and alarming strides...

No, that wasn't a typo. "Between 1858 and 1898...." This quote is from Major Arthur Griffith, Mysteries of Police and Crime, London, 1898, II, p. 469. It's quoted in: Walter Laqueur, A History of Terrorism, New Brunswick/London, Transaction Publishers, 2002.

Charlie Rose:  
And so when you look at where we are going, there seems to be two issues that are apparent to me at least, risk and leverage.  We just lost sight of risk and leverage of what was appropriate?

Warren Buffett:  
Yeah.  Again, because it pays off for a while.  You know, you can lose leverage, and it's the only way a smart guy can go broke.  If you owe money, you can't pay them out.  You just pay for everything, you do smart things, you eventually get very rich.  If you do smart things and use leverage and do one wrong thing along the way, it could wipe you out, because anything times zero is zero.  But it's reinforcing when the people around you are doing it successfully, you're doing it successfully, and it's a lot like Cinderella at the ball.  I mean you know at midnight everything is going to turn to pumpkins and mice; right?  But if the evening goes along, I mean, you know, the guys look better all the time, the music sounds better, it's more and more fun, you think why the hell should I leave at quarter of 12.  I'll leave at two minutes to 12.  But the trouble is, there are no clocks on the wall.  And everybody thinks they're going to leave at two minutes to 12.

Charlie Rose:  
And should wise people have known better?

Warren Buffett:  
People should always know better.

Charlie Rose:  
Yeah.

Warren Buffett:  
I mean people -- people don't get -- they don't get smarter about things that get as basic as greed and you can't stand to see your neighbor getting rich.  You know you're smarter than he is, and he's doing these things, you know, and he's getting rich, and your spouse is getting unhappy with you because you aren't doing -- pretty soon you start doing it.  And so you get what I call the natural progression, the three Is.  The innovators, the imitators, and the idiots.  And that's what happens.  Everybody just kind of goes along.  And you look kind of silly if you disagree.  I mean, you know, you could have these crazy Internet valuations in the late 1990s, but they prove themselves out in the market.  The next day they were selling for more than they were the day before, and people said, you know, you're crazy if you don't get in on this.  So it's very human.  Now, with housing it's something even more dramatic than that, because most people aspire to own their own home.  And if you really think that houses prices are going to go up next year and the year after, you feel if I don't buy it this year, I'm going to have to buy it next year.  That's not true of an Internet stock.  But it's true of a home.  And when somebody makes it very easy for you to do it by saying you don't really have to put up my money, you can lie about your income a little, or we'll give you 100 percent mortgage, you're going to do it, because everybody that's done it has been proven right.  You have what they call social tools, and, you know, you're going to feel like an idiot if you didn't do it, because the house cost more.

Warren Buffett:  
Oh, I think confidence will come back.  I will tell you this.  This country is going -- be living better ten years from now than it is now.  It will be living better in 20 years from now than ten years from now.  The ingredients that made this country, you know, the miracle of the world -- I mean we had a seven for one improvement in the average American standard of living in the 20th century.  Now, we had the great depression, we had two world wars, we had the flu epidemic.  You know, we had oil shock.  You know, we had all these terrible things happen.  But something about the American system unleashed more and of a potential to human beings over that hundred years so that we had a seven for one improvement in -- there's never been any -- I mean, you have centuries where if you've got a 1 percent improvement, then it's something.  So we've got a great system.  And we've got more productive capacity now than we ever have.  The American worker is more productive than he's ever been.  We've got more people to do it.  We've got all the ingredients for a sensational future.  It's just that right now the athlete's on the floor.  But we -- this is a super athlete.

The point of all these questions is the same: a backup password. If you forget your password, the secret question can verify your identity so you can choose another password or have the site e-mail your current password to you. It's a great idea from a customer service perspective -- a user is less likely to forget his first pet's name than some random password -- but terrible for security. The answer to the secret question is much easier to guess than a good password, and the information is much more public. (I'll bet the name of my family's first pet is in some database somewhere.) And even worse, everybody seems to use the same series of secret questions.

The result is the normal security protocol (passwords) falls back to a much less secure protocol (secret questions). And the security of the entire system suffers.

Linksys addressed many of my concerns with that previous device. The 610N can mount a drive and share it via SMB and FTP, have two full-speed connections running over both bands without skipping a beat, and supports several methods of getting the one-click WPS (Wi-Fi Protected Setup) to work. Read the review for all the details, but I can't recommend this router to Mac users with any needs beyond basic networking; I'm perfectly happy to give it a full thumbs-up for Windows XP and Vista users, however.

WPS is a particular mess, by the way. Linksys has four somewhat distinct methods of using WPS to enable a password-free encrypted connection between a client and a base station: a button on the front that, when pressed, turns on WPS; and three modes (one of them similar to that button) accessible via their Web configuration software. One option is to get the base station to create a short PIN that's then entered on the client system as an out-of-band confirmation that there's no man in the middle.

Apple, by contrast, has a single way of joining a WPS-offering base station: it displays the network's name in bold. Select the network, and Mac OS X displays a key code that needs to be entered on the base station. But the WRT610N can't handle that option. If you put the WRT610N into a mode in which Apple can spot the device as offering a WPS handshake, you can't enter the code into the Linksys router!

This shows that there's still rough edges in the WPS protocol that two of the highest-selling makers of Wi-Fi gear can manage to not mesh up their respective options. (Apple declined to comment for my Macworld story; Linksys confirmed the lack of compatibility, but put the burden on Apple's doorstep.)

Here's the story. Every Oyster card has a radio-frequency identification chip that communicates with readers mounted on the ticket barrier. That chip, the "Mifare Classic" chip, is used in hundreds of other transport systems as well — Boston, Los Angeles, Brisbane, Oslo, Amsterdam, Taipei, Shanghai, Rio de Janeiro — and as an access pass in thousands of companies, schools, hospitals, and government buildings around Britain and the rest of the world.

The security of Mifare Classic is terrible. This is not an exaggeration; it's kindergarten cryptography. Anyone with any security experience would be embarrassed to put his name to the design. NXP attempted to deal with this embarrassment by keeping the design secret.

The group that broke Mifare Classic is from Radboud University Nijmegen in the Netherlands. They demonstrated the attack by riding the Underground for free, and by breaking into a building. Their two papers (one is already online) will be published at two conferences this autumn.

The second paper is the one that NXP sued over. They called disclosure of the attack "irresponsible," warned that it will cause "immense damages," and claimed that it "will jeopardize the security of assets protected with systems incorporating the Mifare IC." The Dutch court would have none of it: "Damage to NXP is not the result of the publication of the article but of the production and sale of a chip that appears to have shortcomings."

Exactly right. More generally, the notion that secrecy supports security is inherently flawed. Whenever you see an organization claiming that design secrecy is necessary for security — in ID cards, in voting machines, in airport security — it invariably means that its security is lousy and it has no choice but to hide it. Any competent cryptographer would have designed Mifare's security with an open and public design.

Secrecy is fragile. Mifare's security was based on the belief that no one would discover how it worked; that's why NXP had to muzzle the Dutch researchers. But that's just wrong. Reverse-engineering isn't hard. Other researchers had already exposed Mifare's lousy security. A Chinese company even sells a compatible chip. Is there any doubt that the bad guys already know about this, or will soon enough?

Publication of this attack might be expensive for NXP and its customers, but it's good for security overall. Companies will only design security as good as their customers know to ask for. NXP's security was so bad because customers didn't know how to evaluate security: either they don't know what questions to ask, or didn't know enough to distrust the marketing answers they were given. This court ruling encourages companies to build security properly rather than relying on shoddy design and secrecy, and discourages them from promising security based on their ability to threaten researchers.

It's unclear how this break will affect Transport for London. Cloning takes only a few seconds, and the thief only has to brush up against someone carrying a legitimate Oyster card. But it requires an RFID reader and a small piece of software which, while feasible for a techie, are too complicated for the average fare dodger. The police are likely to quickly arrest anyone who tries to sell cloned cards on any scale. TfL promises to turn off any cloned cards within 24 hours, but that will hurt the innocent victim who had his card cloned more than the thief.

The vulnerability is far more serious to the companies that use Mifare Classic as an access pass. It would be very interesting to know how NXP presented the system's security to them.

And while these attacks only pertain to the Mifare Classic chip, it makes me suspicious of the entire product line. NXP sells a more secure chip and has another on the way, but given the number of basic cryptography mistakes NXP made with Mifare Classic, one has to wonder whether the "more secure" versions will be sufficiently so.

This essay originally appeared in the Guardian.

Soldiers were deployed throughout Italy on Monday to embassies, subway and railway stations, as part of broader government measures to fight violent crime here for which illegal immigrants are broadly blamed.

[...]

The conservative government of Silvio Berlusconi won elections in April while promising to crack down on petty crime and illegal immigrants. The new patrols of soldiers, who are not empowered to make arrests, do not seem aimed only at illegal immigrants, though the patrols were deployed to centers where illegal immigrants are housed.

“Security is something concrete,” Mr. La Russa said on Monday. The troops, he said, will be a “deterrent to criminals.”

That reminds me of one of my favorite logical fallacies: "We must do something. This is something. Therefore, we must do it." It does seem largely to be a demonstration of "doing something" by the Berlusconi government. The legitimate police, of course, think it's a terrible idea.

“You need to be specially trained to carry out some kinds of controls,” Nicola Tanzi, the secretary of a trade union that represents Italian police officers. “Soldiers just aren’t qualified.”

He also questioned whether the $93.6 million that will be spent for the extra deployment, called Operation Safe Streets, might not have been better used to increase the budgets for Italy’s police and military.