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The Basics |
Virus, Worms, Trojans & Backdoors |
Spyware, Adware, Ransomware, Dialers & Cookies |
Spam and Phishing (Identity Theft) |
Backup |
Using a Wireless Network |
Next on Your Mind |
Keeping Private and Confidential Data Safe |
Passwords |
Secure Deletion |
Secure Emailing and Email Deletion |
Safe Surfing |
"Window Washing" - Deleting Unwanted & Unnecessary Files |
Help - Where Do I Begin?
The Basics
Virus,
Worms, Trojans & Backdoors
These nasty small
snippets are made to give you trouble. There are thousands of varieties, and
the result of being attacked can range from a mere nuisance to
complete disaster. Apart from the damage they do to your system, they
are likely to make you PC slow and quirky. Apart from that, viruses
are made to infect other computers that are in contact with yours - most often
by way of email. It is no small embarrasment to find out that
your computer has been sending infected emails to all your contacts and friends and thus
infected those who (like you) are not well protected.
The difference between these
categories are not important to most users, and on a daily basis we
usually refer to the whole malaise as viruses. But for those
who want to be in the know: Viruses infect a host file and
are activated when the host file is run. Worms
are independent and do not need a host file, which can make them replicate
themselves very quickly and bog down both your computer and whole
networks. Trojans are malignant programs that appear to something other than
they are (and may indeed do what they promise while doing damage at the same
time), A backdoor seems to be benign, but opens up a channel
on our computer or network so that it can be remotely
controlled.
There are
numerous ways of becoming infected. Email is the most
common one, followed by installing infected programs, file sharing, instant messaging,
gameplaying, having a teenager in the house...
In ancient times (before 1995) being careful with
which programs you ran could keep you out of trouble. Now tests show that
a completely unguarded PC connected to the Internet is likely to be
infected in less than one minute. This means that having an antivirus
program and a firewall is absolutely required. There are a large
number of alternatives: Most good, some bad, and at varying prices. For
private use, there is no need to pay at all, as there are excellent free
programs. More on this under solutions
.
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Spyware, Adware, Ransomware, Dialers &
Cookies
Just because you are
paranoid it does not mean that nobody is watching you. They are!
These programs can be
installed through backdoors. But more often they are installed by you,
because
you have been duped into doing so, or because
you did not read the long and legal garblegook when installing a new
program, and
thus are unaware that along with this program came a bundle of
unwanted stuff. Once installed, these programs work in the background, spying on your
activities and reporting this to someone, somewhere. The intention can be simply
to expose you to tailored advertising, but just as well to steal your
passwords, access your bank accounts or gather confidential information such as
credit card numbers and expiry dates. In 2005, 80% of all office
computers were infected with spyware, and the average was 27 programs per
computer ("State of Spyware Report", Webroot.) Private PCs are likely to
be worse affected. Note that spyware is often camoflaged as
anti-spyware!
Ransomware
kidnap your data by encrypting these. You have
to pay to get the necessary password to open them again. If you do
pay, you may or may not get this password, so the
realistic way of looking as this is to compeare it to an unrecoverable hard disk
chrash.
Dialers, once installed, will automatically call very expensive connections, usually
abroad. You will not be happy once you get your phone
bill.
Cookies
are small information capsules that are placed on your computer when you visit Web sites, so that you
are recognized the next time you visit. They do no harm by themselves,
but can be used in dubious ways (and to a smaller degree be
useful, for instance when visiting your favorite online shop). They also provide
others with a way of tracking your Internet activities, which is not at all
necessary.
How common are these programs? When we scan
a computer that has been relatively unprotected on the net for a
while, we often find less than ten viruses, but more than one hundred
problems stemming from spyware and dialers. Many of these can be quite
severe. In addition to making the system run slowly and less stable, this
often means that the user has been well tracked by outsiders for quite
some time. That could easily have been avoided, without spending a dime.
We'll tell you
how
.
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Spam and Phishing (Identity
Theft)
Viagra, porn, undervalued stocks, lottery winnings and Nigerian fortunes waiting to be
shared: Spam is a well known nuisance for most of us. Apart from being
annoying in itself, it represents a method of spreading viruses and wasting
your time as well as system and network resources.
Phishing is more serious.
You receive an email that apparently is from a known and trusted service,
such as your bank. You are asked to provide some personal information, such as your
account number and/or password, or to follow a link to their Web site, where
such information is required. This Web site probably looks very much like you
would expect, and can even be an identical
copy of your bank. So you do as requested, and only some time later
you find bank transfers or credit card charges that
you have no knowledge of. Or you may never
notice.
There are
many ways of protecting yourself from spam and fraudulent emails, and
excellent free solutions. What is difficult is achieving the right level
of protection, so that your legitimate email is not deleted in the
process. We will show you which programs to use, but also how common sense
will reduce your spam
related problems
substantially.
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Backup
Goes without saying,
right? Truth be told, the backup habits of most private users and
quite a few small and midsize companies leave a lot to be
desired. This is a recipe for disaster. Yet complicated programs and
scheduled backups can be a waste of time and money too, if the copy and
original are not physically separated. What you need are routines so
simple that you'll actually keep up the good work, and that may well just
mean a DVD recorder or external hard disk plus a free program and some
common sense. We'll help you get organized
.
Top of
page
Using a Wireless Network
No wonder they are becoming so popular. Wireless networks are
incredibly practical to use, cheap and very easy to set up. But you
should be aware that the security is by default very
poor. To make them easy to install, most brands are completely open to
any user within physical range, unless specifically restricted with passwords or other security
measures.
As this text is being
prepared, we have access to three wireless networks in addition to our own. Two of these are completely
open, while the third is secured with WEP encryption. This is an
old standard that could easily be broken by a suitable program while we watched
a movie. Fortunately, compromising networks is not our line of business (protecting them
is).
Open or poorly secured
wireless networks are vulnerable and thus popular for any kind of online
criminal activity. The reason is simple: If
tracked, the online trail leads right back to you, not to
the one actually doing the deed. In addition to this, you provide others
with access to data and resources on your system. They can rob your bandwidth,
run programs from your PC instead of their own, log your keyboard looking for
passwords or codes, and much more. And this is not sience fiction. Since so
few resources are needed (a laptop with some free software, some computer interest and a
midsize brain) it is an everyday occurence anywhere wireless networks are
common.
We recommend
using wireless networks. They're a great tool. But you need to know how
to use them
safely
.
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Next on Your Mind...
Most people have
information they want to keep private. Letters, financial records, private pictures, videos, etc. It
would be inconvenient if this were to fall into the wrong hands, which
can happen in many ways: Backdoors or poorly secured networks can
give hackers access, burglary, or simply necessary repair on the computer. Or it
can be as simple as several users working on
the same computer; each is likely to have a need, or at
least a wish, for some privacy - and quite understandably so.
Information belonging to businesses is often even
more vital, and having this compromised can be anything from embarassing
to completely
disastrous. This is true for hacked networks or the more
common case of some untrustworthy employee, but often all that is needed
is for one poorly protected laptop to be stolen. The value of
the computer is often negligble compared to the value of information it
contains.
Securing
private and confidential information is best done through passwords in
combination with encryption. Simply using passwords, such as in BIOS, logging on to Windows or a
network, opening Office documents etc, is
nowhere close to the necessary level of security.
Your neighbour's teenage son can work around such safeguards just for kicks
- others will do it for profit.
Encryption
secures data on any computer system, and should be used by anyone who has
information that needs to be protected. That's most of us, but
especially laptop users, since laptops are
naturally more likely to be stolen.
There are
many kinds of encryption, or more correctly: Many encryption algorithms.
Some can easily be broken with modern tools, while others are virtually
impossible to crack no matter the resources. For the user, it is important
that strong encryption comes in an easy-to-use package that works fast and
does not offer any "backdoors". There are numerous alternatives, most
unfortunately hyped and overpriced, but also some excellent free
alternatives. More on this under solutions
.
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Passwords
"july06" is not a password - it is an invitation! So are passwords
known to more than one person. A system is never stronger than its
weakest link, and in computer terms, that is often the password. A typical
situation both at home and in the office is this: Too
many low quality passwords that are changed to rarely.
There are programs that will generate passwords
automatically or test the ones you suggest. Is this
something you should use? How about those programs that
store your passwords and place them in Web forms as needed, along with credit card numbers and
personal information?
You only need a few
passwords to cover all your needs, but they should be good ones. We'll
show you the right strategy for
using passwords.
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page
Secure Deletion
To delete a file, you
push the Delete button, right? Sorry, it's still there. Empty the thrash
bin? Nah, still there. True, the reference to the file is gone, so you may
have a little trouble finding it. And in time, maybe tomorrow, maybe two
years from now, or maybe never, the whole file may be
replaced by a new file in the same location on the disk - and
finally gone. But until then, it can easily be recovered. In fact,
if you do not know how to securely delete files
and have the right tools, chances are your disk is full of
old information that can easily be brought back. And though the expensive specialist
companies - often pictured in white spacesuits and goggles - use
sophisticated software and hardware (as do tax authorities and law
enforcement, among others), some computer knowledge and free software downloaded
from the Internet usually is enough to get the job done.
Even if the disk has been
reformatted.
We find it unreasonable that users are prevented from
securely deleting files on their computers. That is true in general, but
even more so when the computer is to be sold, given away or otherwise put
as someone else's disposal. And while a lot of companies (ironically also
some of those specializing in data recovery) will charge you an
arm and a leg to do so - we've seen 30 bucks to delete one disk -
there are free programs that perform to exactly the same standards on as
many disks as you would like. On the other hand, there are many "Cleaner"
programs that do not delete securely at all. We know the difference and
will help you
choose
.
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Secure Emailing and Email Deletion
Sure, email is data also
and thus covered by what we have said above. But there are some special
concerns, as is frequently reported in the press. A lot of problems (and
embarassements!) have
and
will come
from use of emails, and also from employers taking liberties which
they are not supposed (or allowed) to with regard to
employee emails. Because of this, it is important to know that the emails you
have received, sent or forwarded can easily be recovered long after
the fact, even if you have deleted it and emptied the folder with
"Deleted items" as well as the thrash bin. This is true for
Outlook and Outlook Express as well as many other programs (in outlook also
notes, calendar entries, tasts etc).
Secure use of email
can sound like a contradiction in terms. After all, sending an
ordinary email is like sending a postcard with no envelope. What
you send can be read on the computer you are sending from,
the system receiving it, as well as enroute to its destination.
Yet these shortcomings can easily be overcome, and the key word again is
encryption.
For
secure emailing and email deletion you need some knowledge on the email
program you are using. You also need some tools for secure deletion and
encryption. We'll help you with both in a few, easy
steps
.
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Safe
Surfing
Most people use a browser
that is riddled with security holes and on top of that poorly configured.
This means running an unnecessary risk of catching viruses as well as
spyware. In addition, they leave tracks of all their Internet activity
that are easy to follow. Depending on your surfing habits as well as your
personal situation, that may or may not be a problem for you. We're just
here to tell you it is not necessary.
You can also go one step
further, from safe to anonymous surfing. This will
prevent information on your surfing habits from being gathered by your Internet service provider,
search engines and others.
Safer surfing is easy and free. You just need to know how.
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page
"Window Washing" - Deleting Unwanted and Unnecessary Files
There
are at least three good reasons to perform regular "Windows
washes":
1)
Normal use of Windows leaves a lot of
history and tracks: Which programs were run, which documents opened, which
Web sites visited etc. Many will find this perfectly OK, others less so. Window's
own functions for doing so fails miserably.
2) Many programs leave temporary
files. Over time, these can occupy a substantial amount of space on your
disk, slow down your computer, make it unstable, and provide a great
hiding place for viruses and other malware that you don't want to host.
3) During installation a lot of programs set themselves to load as your computer
starts up. As more programs are added to the
startup process it becomes slower and slower, and more programs loaded
in the system memory also negatively affects general performance. Handling
the startup process is therefore important, but Windows is poorly equipped
to do so.
There are
excellent programs for Windows washing, and several are free.
Unfortuately, there are also programs that are sub par, and many spyware
programs camouflaged as Windows washers. Some programs even harm your
privacy by gathering sensitive information and then unsecurely deleting it
so that it can easily recovered. We help you choose the right
programs
.
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Help - Where Do I Begin?
At the top - with the basics! Most people need to pay attention to the areas mentioned
above, but of course to varying degrees. It is simply a matter of
protecting your computer from outside attacks occurring to
anyone connected to the Internet, maintaining an acceptable level of privacy, and making
your system perform as it should. You want to keep your "lean, mean
& secure machine"...
Now the
good news: Achieving this is quite easy and will not consume a lot of
time. And what will it cost? Less than one hyped "premium" anti
virus program.
We'll show you what to use,
and how to use it.
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Don't be sorry -
BeCyberSafe!
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