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Report Suspicious Activity
Any of us who drive the Interstate Highway System in the US have probably seen centrally-controlled
highway information signs. In Maryland, these "Variable Message Signs" (VMS) are
overseen by CHART, the
Coordinated Highways Action Response Team. Usually, the signs report traffic conditions or
warn about accidents ahead. Often, it seems, when they have nothing else to do,
they say something along the lines of, "REPORT SUSPICIOUS ACTIVITY -- CALL 800 492 TIPS."
As I drove by this the other morning, I thought, "Yeah, right. What's 'suspicious'? If the traffic was moving
a bit faster... now that would be suspicious."
Then I realized, I was mistaken to be so derisive. Because, while we cannot define suspicious
activity, I think we often know it when we see it. I mean, by definition, it is activity that
arouses uncertainty or seems strangely out of place. It is directly linked to feelings. Suspicion
is subjective. It is not easily measurable. And that is just fine.
This is why user education is still a viable part of a network security defense. Surely, security
mechanisms such as firewalls, antivirus protection, etc. don't forget and so are more reliable that just
educating the user -- whose main task usually has nothing to do with security -- to avoid doing bad
things. But, users are very good at recognizing when -- as Miss Clavel, of the
Ludwig Bemelmans' classic Madeline children's books, noted --
"Something is not right!" So, we remind our users that they should report suspicious activity.
Such as people with masks over their heads approaching the building? I suppose so. But, in our
realm we're more interested in the network seeming to run slower than usual, the desktop computer
crashing (more than it usually does, perhaps),
"phishing" attempts, increased disk activity when nothing seems to be happening, or computer
performance degradation.
Foolproof? No. Cost-effective? It depends. (A very important
security answer.) It depends on how much
it costs. In user education, a small amount of money goes a long way. It's like those highway signs.
Will they hinder a terrorist attack? Maybe not. But... maybe. When securing your network, someone will
probably notice when something is amiss. It doesn't cost very much to help them remember what to do.
More Same Old Stuff
Ira Winkler, in a searchSecurity column, says more of the
same old stuff. Of course, as I mentioned in my blog
"Same Old Simple Things," that's just what we need to
hear ... and apply! One thing that Ira says stands out:
"Therefore, in terms of traditional risk, your organization is
exponentially more likely to suffer regular losses due to
completely preventable computer problems than to be hit by cyberattacks."
See his complete column at this
really long and ugly URL.
Scrap MS Word?
We've heard (or made) recommendations to scrap MS products. Recently, I
shared The Things I Hate About
Outlook. This morning my
Slashdot newsfeed served up
Time to Kill Microsoft Word?
I'll just let you read it, but it pointed to an ABC News commentary
by John Dvorak, Kill Microsoft Word. (If the long and ugly URL disappears,
an Internet search for the author and title should turn it up.)
Basically, Dvorak lists the things he hates about Word.
The Slashdot posting points to openoffice.org. I've gone through this exercise before.
How important is compatibility? Will Openoffice allow me to create "portable"
documents (word processor and presentations)? More importante for my
world, will it allow me to receive and use documents from others?
I'll find out, but I am interested in hearing from others in the same boat,
who need compatibility of sorts with MS Office, and who have made the switch -- successfully
or not.
The Things I Hate About Outlook
These are some of the features I hate about Outlook.
-
I believe it is getting better, but by default it puts features (usability and presentation)
over security. I had to turn off the automatic formatting in Outlook (I want to send only
plain text messages, not HTML, not RTF). Still, if I forward or reply to a message that
has been formatted, I have to explicitly tell it to send it plain.
-
Outlook with Exchange acts as if the whole world can access "The Address Book."
Your message
To: zzzz@avolio.com
Subject: security truisms
Sent: Thu, 12 Aug 2004 06:24:51 -0700
did not reach the following recipient(s):
Schmidt, John Jacob Jingleheimer on Thu, 12 Aug 2004 06:50:56 -0700
The recipient was unavailable to take delivery of the message
Okay, quick. What's missing? Right, Mr. Schmidt's e-mail address. If e-mail to him is
bouncing I'd like to contact him or remove him. If his e-mail address is something
obvious -- oh say, jjj.schmit@someplace.dom -- I can deal with it. If it is an address
unrelated to his name, I'm out of luck. Also missing is why he was "unavailable."
Step out for coffee, did he? Moved and left no forwarding address? Disk write error?
In addition, if you forward a message, the e-mail addresses are lost -- just the full names
remain. In other words, potentially important information is lost.
-
In fact, Outlook discards all e-mail headers it doesn't care about, but which are required
for debugging. It doesn't just hide them, it removes them.
-
It tries to be too smart. When you enter text in your address book (Contacts
manager), instead of filling in fields, it tries to guess what is what. All those "smarts"
would make things easier for the user, if it did not also make things slower for the user.
Fast and simple beats slow and complex.
-
There's too much reliance on "point and click." I want to set up a distribution list by 1)
giving it a name and 2) typing in all the e-mail addresses separated by commas. (I could
live with semi-colons -- see next item.) I don't want to have to enter them separately, one
at a time.
-
It insists on rewriting (breaking) nice, standard, RFC822 (okay, I am showing my age --
RFC2822) addresses. What is wrong with the following?
Joe E Smith <joe@avolio.com>, (Mary Jones) mary@avolio.com
Nothing, But Outlook will insist on making it
"Joe E Smith" [joe@avolio.com]; "(Mary Jones)" [mary@avolio.com]
Outlook. It has been said before: Lookout.
Spam Firewall Bogon Alert
Maybe I am just cynical. The headline is "Revolutionary Spam Firewall."
I saw it on slashdot.
It pointed to
the
PhysOrg.com article.
My bogosity filter started right off.
"a groundbreaking firewall..." "The new technology is the only true spam firewall in existence."
Matthew Sullicvan, one of the developers explains, "Existing anti-spam software filters out spam
whereas ours puts up a firewall, stopping all email traffic and only allowing real mail through."
Sort of like filtering.
"It is The only anti-spam software that analyses emails as a whole picture, rather
than based solely on components such as key words or phrases."
Well, the only one ... not counting Bayesian filtering, for example.
Let me know if you know if this is really different. It doesn't sound like it to me.
My filter pegged this as a bogon.
No place is too far removed
Slashdot reports that the
South Pole Research Station Hacked Twice.
In
E-mail Postage Due, I said, "On the Internet, every call is a local call."
Of course, it is deeper than that. On the Internet, everyone is potentially
your network neighbor. And it is not
Mr. Rogers' Neighborhood.
Kennedy Can't Fly
One of the most recognizable US Senators -- perhaps recognizable throughout
much of the world, Senator Edward Kennedy, had trouble boarding his flight
from DC to Boston, and then when he tried to return. He was on the "no
fly" list ("in error," the AP report indicates).
Homeland secuity is important. But we don't want to leave our brains at
the door. True, the Senator
might be a terrorist. But, if I'm a ticket agent in Washington,
I think maybe I'd have
read about it or seen it reported, at least on Fox News or CNN.
Do you agree? Or do we toss out common sense for the sake of security?
See the report at
Yahoo. (If the link is broken, search for the headline:
Error Puts Kennedy on Airline No-Fly List.)
Homeland Security Certification
Business has been a little slow, so the mailer caught my eye. "Certification, Training, and
Continuing Education in HOMELAND SECURITY" was emblazed across the "Stars and stripes." Cool. Maybe that's just the ticket to increase the knocks on my electronic door.
The first thing I would have to do, of course, is become a member in good standing of the
American College of Forensic Examiners Institute. CHA-CHING. That's $130 for the
first year or $1,750 membership for life. I don't know. "member for life" is attractive if I
live another 45 years, I'm saving over $100 a year! But, will I want to be doing this into
my 90s?
Oh, an additional $350 for the "Homeland Security Program" add-on to this. Total, $480.
I'll have to think about this. But, would I even qualify?
The questionnaire is next. "Application for Immediate Granted Certification in Homeland
Security," presumably with all the rights, honors, and groupies associated with same.
Under experience, I start to get nervous. Military experience? Nope. Law enforcement?
No, unless you count being a parent. Private security experience. Ah, good. I was CSO at
TIS for a year. (Maybe less than a year, but I'll round up.) That's good for 15 points. You
get an additional 5 points for each year of "overall private security service." This sounds
like double-counting, but I'll grab that additional 5. I have 20 points, so far.
I was not a firefighter. Nor was I ever in the medical or health fields. But, oh boy! Under
"Other Homeland Security Related Experience," we have "cyber security." Right there
out in the open like that's a real field. Well, I suppose in 18 or so years in computer and
network security, I've secured some cybers. The kicker is I get to pick the number of
points that should be worth. Being a modest guy, I'm saying 25 points.
I get 35 points for my masters degree, 15 points for my TICSA certification, Under
training, I get nothing because I am not a "Diplomat" in the "America College of Forensic
Examiners Institute. (And does it bother you that both "College" and "Institute" are used
in that?) Nor have I taken or taught any "Homeland Security-related courses. But under
"Knowledge" they have that phrase "or related." I get 10 points for each presentation on
"Homeland Security or related topics." Heck, I don't know, I bet it's around 40 over the
past 4 years. 400 points. 15 points for professional article (related topics), so let's call it
20, for 300 points. Finally, 5 points for every conference I've attended on Homeland
Security (none) or related topics (10-20) -- 50 points. My grand total is 845 points! Wow.
An "Immediate Granted Certification in Homeland Security" Level 1 only needs 100
points. For 200 or more I could get a Level 2. And 300 or more is a Level 3. Heck, I'm
clearly a Level 3 then. But with 845 points I think I want another level added.
Oh, but wait. I still have to pay $480. Never mind.
Outlook - Just say "no".
"Refusing to join the modern world [in not] implementing Microsoft Outlook"
I will have more to say in another blog entry. But, for now
I wanted to share an e-mail I received and my comment.
Mr. Avolio,
I recently read an article you co-wrote that was published in
Information Security Magazine. I hope you can answer a quick question
for me...
I work for a local community college in Canada and our IT department is
refusing to join the modern world by implementing Microsoft Outlook.
Currently all users are forced to use the mail feature of Netscape
Communicator 4.79. We are using the IMAP protocol.
We are told that Outlook is less 'safe' and not as 'secure' as Netscape
when it comes to preventing the spread of viruses throughout the system.
Does this make any sense?
This was my reply:
It makes complete sense and they are 100% correct. You should praise
whoever had the guts to say no to Outlook as an email client.
I have to use Outlook in a new day job. I'll talk about what I hate
about it. Some has to do with basic e-mail functionality. Others have
to do with security. More anon.
Finally, a just punishment for spammers
The headline caught my eye:
"Web Spammers Can Be Beaten in Two Years." I cannot wait!
Same Old Simple Things Addendum
Marcus Ranum has written up the discussion I mentioned
the other day.
Find it (I hope) at
http://loop.interop-comdex.com/comments/199_0_1_0_C/.
Same Old Simple Things
I was re-reading one of Marcus Ranum's posts to the firewall wizards
mailing list.
(Tue, 20 Jul 2004 23:49:40 -0400). It was terrific. Jump to it and read it.
Plain and simple stuff that -- if people do them -- will reduce risk.
I had a similar list in an Advanced Firewalls class I taught for N+I and a
"Tools and Techniques" class for CSI. I got bad reviews in the Advanced
Firewalls class. Maybe I am a crummy teacher, but of course I don't believe
that. I think the students really want some really neat-o, cool devices to
run, hand-held thingies to try, and something that was wireless as well. But
few of those things help as much as sticking to the basics. And they don't
like to hear it.
I just saw an article via Security Wire perspective. If this ugly URL isn't
broken, you'll again find a whole bunch of brilliant stuff that a very few
of us keep pounding on.
See
this ugly URL.
So, I wondered how do we ever get people to listen when they really, really do want
magic or priest-craft?
Marcus pointed out that "'my words, like silent raindrops fell...' - nobody
wants to hear it."
A few days later, I was looking for somethings to help an IT manager to start looking
at security policies. I found a number of old articles on my site, for example:
What is the matter with the industry? Those old papers are still accurate. They are
still useful. They are 5 years old. Should I be concerned that we're not
growing up and moving on? The old, simple, basic things still work and are
still needed and are still ignored.
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