The worst test I ever took

I’m gearing up (finally) to take the CISSP, a 250-question marathon of an exam that covers everything from firewalls and intrusion detection systems to how tall the fence or wall around a building should be and what kind of lights to use in a parking garage.  And everything in between. Three of my colleagues have had CISSP certifications for several years, and on Friday two of them were telling me what to expect.

And the worst test I’ve ever taken came to mind. No, it wasn’t Security+. I had a pretty good idea I was going to pass that one, which I did. The worst test I ever took was Dr. Walter Johnson‘s Fundamental Macroeconomics (Economics 1) makeup final at Mizzou, circa Winter 1994.

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News flash: e-books are overpriced

I saw a story yesterday about how e-readers are getting cheaper, but e-books are rising in cost.

In some cases, the e-books cost as much as, or more than a paper copy of the book. Which, as anyone with any knowledge of printing should be able to tell you, is ridiculous. Most of the cost of a paper copy of the book is printing and distribution. Or, at least that’s what they used to tell writers. When people paid $24.95 for a copy of my book, published in 2000, I saw about $1.75 of it. I’m probably not supposed to tell you that, but I just did. The printing and distribution costs of an e-book are negligible, so if the author, who does most of the work, is supposed to be able to get by on $1.75, shouldn’t the publisher and retailer find a way to do the same? So divide the revenue evenly between the author, publisher, and retailer, sell the e-book for $5.25 and, and everything’s fair. They could even put the book on sale for $2.97 sometimes, drop everyone’s share to 99 cents, and hope to make it up in increased sales.

But here are some things you can do while you wait for publishers to get a dose of reality.
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Hey, AT&T! Don’t send clumsy oafs to bury my cable!

Late Thursday morning, AT&T sent a subcontractor out to bury the cable strung across my yard for U-Verse. He buried the cable, but tore it up in the process. He knocked on the door and asked my wife to see if anything worked. It didn’t. Then he told her to contact AT&T and left.

That’s customer service. Poor customer service. But customer service, nonetheless, right?
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Milestone: Enterprise SSDs are cheaper than enterprise HDDS

Partly due to flooding in Thailand pushing up disk prices, and no doubt partly due to the natural progression of new technologies driving down the prices of flash memory and related components, enterprise SSDs are now cheaper (at around $2 per GB) than enterprise 15K RPM HDDS (at around $3 per GB).

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Firefox 6 is out. Yawn.

Firefox 6 came out sooner than expected, and yet, I can’t find anyone who’s excited about it. Probably because, under last year’s conditions, this probably would be called Firefox 4.2 or perhaps Firefox 4.5 or 4.6, something like that.

Yeah, I’ll be installing it, if only because it’s the security update for Firefox 5. But it sure feels anticlimactic. When Firefox 3 and Firefox 4 came out, I felt excited. Maybe that means something’s wrong with me. But there was something compelling, something tangible about those new releases. I don’t think either of them let me do something I couldn’t do before, but they at least held the promise of letting me do those things faster.
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More on the new Intel 320 SSD

A few weeks ago, my security go-to guy, Rich P., bought a new Intel 320 SSD for his netbook.  With my encouragement, of course. It finally arrived this weekend, and he installed it. Rich reports not only faster speed, but also a 30-minute improvement in battery life over the WD Scorpio Black it replaced.

He told me the secure erase function, to enable AES, had a snag. But he solved it. I’m documenting it here in case you ran into the same thing he did.
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So why are Apple and Google (and Microsoft) tracking us?

So why are Apple and Google (and Microsoft) tracking us?

So what are Google and Apple doing with this location data? And Microsoft, now that it’s clear they’re gathering it too (but they claim they aren’t storing it anywhere on the phone).

They aren’t saying a lot, but they’ve said enough to take a pretty good guess. And no, I don’t think the intent is to be evil.
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You network guys…

One of my clients has a problem. We’ll call him Melvin, because I like changing names when I tell stories.

Melvin doesn’t like network guys, and takes every possible opportunity to tell anyone within earshot. “You network guys don’t understand what’s going on over that wire, and you don’t want to.”

We do understand, but not the way he thinks network guys should. Melvin is wrong.

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The solution to paper passwords

I know your passwords are either written down or insecure. I know it just as surely as I know New Year’s Day is January 1.

I know because passwords have to be incredibly complex to be secure, and I know because the typical person has to juggle half a dozen of them, or more. Think about it. Your work account. Amazon. Ebay. Paypal. Facebook. Your bank. Your personal e-mail. Your credit card. Your online billpay service.

I know you’re not going to memorize a half dozen gibberish passwords that look like 5E%c2.3730pK$0/.

So you have them written down somewhere, which is OK, or you have them all set to the same thing (hopefully not “popcorn”), which isn’t OK. Even if you’re using 5E%c2.3730pK$0/ as your password.

A secured piece of paper works fine until you lose it, or you’re out somewhere and don’t have it.

The solution is a product called Lastpass. Software legend Steve Gibson talked about it at great length at http://www.grc.com/sn/sn-256.htm.

Basically it’s a program, which can run standalone or as a browser plug-in, that stores passwords securely. It mathematically slices and dices the data so that all that’s stored on LastPass’ servers is undecodable gibberish, but, given your e-mail address, your password, and a printable grid you can keep in your wallet, you can decode your password database from any computer, anywhere you happen to be.

There’s a lot of nasty math involved in cryptography, and I won’t pretend it’s my best subject. Gibson goes a lot further into the details than I want to get into. As someone who knows enough about cryptography to get CompTIA Security+ certification, and someone who’s read the official CISSP book chapter on cryptography twice, it sounds good to me.

An additional feature is the ability to store things you need rarely, but when you need them, you need them desperately. Things like your credit card numbers, driver’s license number, and your kids’ social security numbers.

There’s a free version of Lastpass, and a premium version that works on mobile phones and mobile software like Portable Firefox, which costs $12 per year.

The free version runs on Windows, Mac OS X, and Linux, which covers more than 99% of the computers out there today. And it runs in every major browser.

When you go to run Lastpass, it will import your stored passwords from your web browser(s). And it will give you a rating, based on how secure your passwords are and how often you re-use them. It will generate secure, random gibberish passwords for you and help you visit sites and change your passwords. Along the way it grades you, helping you to increase your security.

It can synchronize too. So if something happens and I have to change my Amazon password and I’m at work, my wife gets the changes, so if she needs to get into Amazon, she doesn’t have to do anything different.

It makes good security an awful lot less painful. I can pretty much say, without reservation, knowing nothing about you except that you use a computer, that you need this.

A real world example of TEMPEST

In studying for my CISSP, the topic of TEMPEST came up. TEMPEST is, essentially, interpreting the electromagnetic waves given off by electrical devices to recover the data they contain. This can happen accidentally, or on purpose.

An accidental example of this happened to my neighbors in college.Darren lived directly below me. Scott lived across the hall. Darren had a cheap, no-name 486SX clone, and he lived on it. Problem was, it interfered with Scott’s TV.

One night, Scott got fed up with it and called Darren on the phone. "Get off your computer," he said.

"Can’t. I’m doing my homework."

"No you’re not, you’re playing Solitaire. Cut it out so I can watch TV."

Not only was Darren’s computer interfering with Scott’s TV, but Scott could see what Darren was doing. Not plain as day, but close enough.

The next semester, Darren traded his PC in for a slightly faster Dell, and Darren’s Dell got along just fine with Scott’s TV.

Extreme examples like this are rare, but possible. Even today.