'Membering Mnemonics

I often learn quite a bit from the students I’m supposed to be teaching (mainly because they’re invariably smarter than I am). I also love mnemonics— those mental tricks and reminders that help you recall concepts and bits of information.

This past week, one of my classes was going over the OSI and TCP/IP networking models; I had a great mnemonic for OSI (Please Do Not Teach Security People Anything)…but I confessed that I have no way of remembering the TCP/IP Model.

One of the participants said she had something, but was reluctant to share. We coaxed it out of her. I share it, slightly modified, with you now:

“Not In The….Arctic.”

I will never again forget the names of the four layers of the TCP/IP networking model. Though I may try.

Thanks, Lauri— you’re a good teacher.

Wandering Security

For the first time ever, I ran across a hotel business center (desktop PC and printer) that had the USB ports physically blocked out. I find that interesting only because I’ve often considered how easy it would be to introduce malware/whatever into a business center (and often hoped those machines are airgapped from the hotel’s production environment).

Of course, this was at a time when I needed to print something off a USB stick, instead of, say, an email I could access through a Web browser.

I found out that unplugging the keyboard would, yes, open a viable USB port that wasn’t limited to just human interface devices. Sure, I was limited to inputs from the mouse in order to manipulate the file (because, well— no keyboard), but it seems that someone put at least some good thought into locking down that system, but then left a giant pathway right through their control policy.

Not sure what the workaround would be, short of putting Super Glue on all the keyboard/monitor USB connections for every PC in every property in that hotel chain. Or going with thin clients that have peripherals that are hardwired and not connected by USB (come to think of it, with a very limited target functionality, why does the business center need full PCs, anyway?).

Anyone ever given any thought to this?

The Flatline Cohesion Principle

This week’s CCSP class pointed out that one of the multiple-choice answers in my book of practice tests included the term “flatline cohesion principle.” They asked me what it meant, and I had to admit that I had no clue…maybe it meant that I was drinking too much scotch when I wrote the book?

Turns out, it was a nonsense term I invented as a distractor from the correct answer to that specific question. So we discussed the idea, and decided we had to come up with a definition for the completely blank term.

The consensus was that it should mean: “When you write a book of practice tests that may or may not have complicated, misleading questions in it, then use your class to crowdsource how worthy the material is for study purposes.”

I do like this. But I am very open to alternative uses for the term. If someone comes up with something better, put it in the Comments section, and I’ll send you a free copy of the book. I will be the sole judge of what constitutes “better.”

In the meantime: everyone should follow the flatline cohesion principle.

And many, many thanks to this week’s CCSP class participants: y’all were awesome, and I think you’re all gonna to conquer the exam.

Sharp Security

In the US, possession of a switchblade is a federal offense, but butterfly knives are as legal as rye bread.

In Germany, it’s just the opposite. About switchblades and butterfly knives, I mean— bread’s not illegal there, as far as I know.

Funny thing: neither place, far as I can tell, suffers from crime waves using either instrument.

I am sure someone smarter than me could figure out some sort of meaning in this.

CCSP Test Feedback

From a recent student:

”I found it to be quite challenging, mostly because more than a few of the questions and / or answers were so tersely worded that it was very hard to determine what was being asked.  I also ran into some test questions on concepts that weren’t covered in the course material, or if they were,  it was in passing and didn’t really justify the attention it got on the exam.  However, I passed, so it’s all behind me now.  :^) “

Amazon Data Leaks

Meh. When I first saw a notice that contained the same words as the headline on this entry, I thought, “well, here begins the end of cloud managed services.”

But then I read an article [like this one] and saw that it was really Amazon employees taking bribes from retailers to remove negative reviews.

So…”help me sell more sandals,” is a far cry from, “sell me my competitor’s data.” I would imagine Amazon’s main concern is that the bribes are less expensive than what Amazon could otherwise charge for this same service…and go directly to the employees, instead of to Amazon.

RECENT CISSP CAT EXAM NOTES

Got an email from a recent former student...the kind of email I really enjoy:

"Hi Ben,I wanted to let you know that I took my test yesterday and passed at 100 questions :D

 

- After our class, I studied using mostly the Boson practice exams (reading the explanation for EVERY question, failed or passed).

- After that I bounced back and forth between Boson random exams, the updated Sunflower guide, and the 11th Hour book (which was great for last-minute cramming, the last 2 days leading up to the exam).  I also watched Kelly Handerhan's CISSP prep videos at Cybrary prior to our class, and various other YouTube videos (Larry Gleenblatt's CISSP exam tips were helpful) here and there.

- I studied for about 2-3 hours a day, every day, for 4 weeks total (taking 1.5 weeks off for vacation).

- I was 100% certain that I was going to fail while taking the exam.  I was so sure of it that I considered just picking the same letter answer over and over to end the test and GTFO at around 80 questions.  Glad I didn't.

- I took my time reading and re-reading each question and answer so many times that I thought I was going to shoot myself in the foot with the time of the exam.   I had about 30min left at 100 questions.

 

Thank you for all of your wisdom and guidance during our class.  I feel that it helped a lot and set a good expectation for the exam and framework of where to study. It helped me realize my weak areas so I knew where to focus.  Although, the test has a funny way of making you feel that you're completely unprepared while you're actually taking it. :)"

Physical Badsec

If your physical security process involves controlled items, make sure you train your staff not to hand a stack of the controlled items to unauthorized personnel during the procedure...else someone could pilfer one or two, and use them for all sorts of nefarious purposes.

 

In totally unrelated news, if someone wants to smuggle contraband/small children/explosives aboard a cruise ship, drop me a line in the Comments section.

carnival luggage tag.jpg

Bad Control

The vendor has a policy: checks that are numbered less than 1500 are not accepted.

The clerk tells me to just ask my bank to put a higher number on my checks and send me some new ones.

The control was put in place years ago, to reduce the possibility of fraud from an outdated attack method (does anyone even commit check fraud anymore?). The vendor obviously knows the control is easy to overcome, and only actually prevents legitimate transactions.

This is not a good control.

First person to guess the vendor correctly gets a free copy, your choice, of one of my books. Put your guess in the Comments to this post.

Letting Off Steam

            Valve is a company that makes computer/video games; they also run the Steam game distribution platform, which is an online store/licensing portal that sells games made by other companies. This week, Valve announced it would no longer curate titles on Steam, and allow any game producer to host any title in the store, for sale to the public (with the notable exceptions of games that contain illegal content and those are “straight up trolling”). [You can read the announcement at: https://store.steampowered.com/news/]

            This is fascinating, and definitely a reaction to recent public attention focused on one game that Valve took off the Steam platform (and simultaneously banned the game producer), a first-person shooter that simulated mass murder at a school, called Active Shooter. While I’m not sure how that game would run afoul of this new policy (is Active Shooter straight up trolling or illegal content? if neither, why is it still banned?), it seems very interesting to me that Valve chose to modify their approach to hosting titles as a result.

            I am a gamer. And I am interested in maximizing free speech. Valve’s decision therefore delights me greatly. Opponents of Valve’s decision (including writers from disparate sources, such as game review websites and Forbes) kind of puzzle me, and somewhat infuriate me. Their arguments seem to constitute two lines of thought: 

1) By allowing anything, Valve is taking a political stance that endorses everything.

2) By allowing anything, the online store will be swamped with material customers don’t want, such as games that include topics that bother some people, including racial bias, violence, and sexuality. Customers won’t be able to find what they want, because of all the material they don’t want; this will be particularly disturbing to sensitive customers who are offended by those topics.

            Trying to make sense of these criticisms, I draw these two conclusions:

1) I can’t possibly understand why the political stance of “allowing everything” is ugly or wrong: the entire purpose of having a free society (much less a free online store) is so that conflicting ideas and perspectives are allowed to exist (and maybe flourish)....even if most of us don’t particularly like them. Having freedom so that we can all like the same things isn’t freedom, it’s a sheep farm.

2) I don’t think the people saying this A) are gamers and B) understand how the Internet works. To explain in detail:

            A) Gaming is a participatory mode of entertainment unlike any other form of mass media: books, movies, music are all projections of the creators (writers, directors, musicians, singers) at the audience in a unilateral communication; the audience does not communicate with the artist or influence the art. (The notable exception: choose-your-own-adventure books, where outcomes are decided by readers.) In gaming, the player must take part in the activity in order to determine progress/outcome. The artist(s) can present content, but the game doesn’t actually do anything unless the player is utilizing it-- a game without a player is a title screen, and no different from wall art. In terms of recreation, this makes gaming more akin to, say, sports, than literature (with the obvious advantage that gaming does not favor only those with the biological birthright biases of ability, size, speed, etc.).

            So in order to be “affected” by a game (no matter how sensitive you are), you have to actually play the game...which is a conscious choice, and includes the option of stopping at any time. You, the player (or potential player), have full control over whether any selection from that medium, any game, affects you, personally. You have no control over whether someone else can play it or if they are affected, and nobody else has control over whether you play it or are affected. You. You alone are in charge. Compare this to, say, the television turned to full volume in the airport waiting areas: I have no choice, as an audience member, to voluntarily not participate: if I want to isolate myself from that communication, I have to take active steps (using headphones/earplugs, purposefully not looking in that direction) to insulate myself from the message.

            Gamers understand this, and relish it-- it is one of the great joys of games. There are many thousands of games I have never played, nor ever will-- those do not affect me in any way, much the same way the millions of sandwiches eaten by other people only affect those people, and not me. There is food on this planet I do not like, and would probably cause me intestinal distress: I don’t have to eat that food, and can choose not to.

            Now, is it possible that the title of a particular game offends someone, and just seeing it on a screen bothers someone? Or that hundreds of these titles, listed together, scrolling across a screen, might be distressing to a viewer? Like, if every title in a list of hundreds contained racial/religious epithets, or swear words?

            Maybe that would be bothersome to someone...or maybe it would inure that person to those words, causing those words to lose power. But that’s not really here nor there, because we go to point....

            ....B) The Internet is the best shopping market ever devised. I can find almost anything I could possibly want, in a moment, without the trouble of leaving my couch. Steam makes full use of Internet possibilities, allowing a shopper to search for particular terms (or filter out particular terms), see only titles that are preferred, or limit content in any number of ways. So not only does a gamer not have to play a particular game (or genre of games), but the gamer does not even have to see a given title or type of title.

            Those that complain Steam will be overwhelmed with undesirable games, making it difficult for shoppers to find the games they (the shoppers) like, don’t really want to shop. Because that’s what shopping is: making a choice from among options. The complainers want someone else to make the choice for them (and for all gamers) by limiting the possible options. I find that sad; when an adult wants to forego the power of their own choices, they limit themselves (and when they want to impose it on everyone, they’re limiting all of us).

            Might Steam get inundated with cheap, callous, crass games made by halfhearted or greedy developers less concerned with quality gameplaying experiences than turning a quick buck? Might that make it harder for a shopper to find the gems hidden in piles of dross? Possibly. But that same description could be used for major production houses right now, easily. And sifting through a bunch of crap to find a treasure is one of the great joys of one of my favorite shopping formats: the flea market. I have found some items of great value (both relative and financial) for amazing prices at flea markets...and I have spent hours in flea markets where I’ve seen nothing but crap and not made a single purpose. Did the latter experience harm me in any way? You could argue I lost the value of those hours, but that would be predicated on the assumption I didn’t receive enjoyment and entertainment value from those hours

            I assure you, I did.

            Finally, just to offer a couple thoughts on the public outrage over the specific game that started the whole conversation: Active Shooter. I am not sure why the idea of a simulation that mimics a tragedy, or where the player can pretend to be an awful person, or where entertainment is derived from violence is something to revile. I and my friends have pretended to be Nazis, done faux atrocities, and taken pleasure in murder for decades...and those were just board/tabletop games: Axis and Allies, Dungeons and Dragons, and Clue. Oddly, it has never meant that I actually want to invade Poland, slaughter hobgoblinoid people, or would take delight at a dinner party in which someone was bludgeoned to death with a heavy plumbing tool.