Security
When speaking of computer systems, never use the word "secure."
-- Donald H. Rumsfeld, former U.S. Secretary of Defense
If you use a computer, regardless of whether or not it is connected to the internet, you are in danger.
You've spent some money on a nice system and it's proven to be very valuable. You've got lots of financial
data (at least your checkbook), your graphics, scanned photos and lord knows what else stored safely on
your hard drive.
You think you are safe? Think again.
Before you do anything else, make sure you have a backup and recovery plan
for your computer system. Invest in some kind of backup device (a tape drive, zip drive or whatever) and a
good backup program (Backup Exec is good) and do regular backups. At the very least, back up your critical
data files. You MUST do backups if you want a secure system ... if something gets through your defenses
you can rebuild if you have a backup. Otherwise, you are stuck ... system destroyed an no backup means you
lose all of your data.
Your first and most significant danger is from nasty little viruses. Your
system is in danger if it has any contact of any kind with an outside computer. This includes an internet
connection, a network link or even a floppy disk. What do you do about it? Spend the money and buy the
best antivirus software that you can find ... I prefer
Norton Antivirus because of it's ease of
use and automatic updating features. There are plenty of products to choose from, but be sure you can get
regular, easily and automatically installed virus updates. Norton is good because it also comes with an
email module which scans incoming messages and removes viruses automatically.
The next thing I would recommend is to check out your email program. Microsoft's email programs are
wonderful, but they are so powerful that they allow a multitude of malicious programs to damage your
computer. If you are using Outlook Express,
consider switching to Eudora or a similar program. If
you are using Outlook, I would suggest you
check out the security upgrade from Microsoft which
effectively disables many scripting features and the opening of executable files. This will prevent email
viruses, more properly called Trojan Horses, from infecting your system.
Once you are protected from viruses and email Trojan Horses, it's time to protect yourself from people
attempting to break into your system. Even if you are using a dialup connection, it is a good idea to get
yourself a firewall. If you can afford it, purchase a hardware firewall such
as the SonicWall. You
can also get a nice software firewall such as
Zone Alarm (you can install
the free version). A hardware firewall is far superior to the software versions.
You may also want to use an anonymous proxy service to cloak your TCP/IP
address from others. An anonymous remailer is good to keep your email address confidential, although you
can use several free web-based email accounts to perform
a similar function.
Now if you really want to be secure invest in
AdSubtract Pro (there is also a free version) and configure the cookie and
referrer protection. This allows you to selectively enable or disable cookies
and referrers (and some other things) based upon web site address. It's very useful and easy to configure.
Also remember to configure
AdSubtract to remove advertisements and web bugs, and you've got yourself a
pretty secure system.
Now you want to stay secure ... you've got to understand that there is a war going on right now as we
speak. This is the war between hackers and the rest of the world. Hackers are constantly testing the
limits of computer systems, and find new holes and vulnerabilities all of the time. Thus, in order to keep
your system really, really safe, you need to sat on top of the most current security information.
A good place to start to become educated is the
Microsoft Safe Internet: Privacy
and Security Fundamentals site. Another good site is the
ZDnet
Security Resource Center. Read through both of these (keeping in mind they are very technical
sometimes) and review the sites occasionally and you will be relatively up-to-date on security issues.
Read up on other threats to your privacy so you can be more careful online. Be especially wary of
scams and other attempts to defraud you. If you've got
kids, but in place adequate safeguards to protect them. This is very important
if you don't want them getting themselves, and you, into danger.
Finally, be cautious about installing any new programs, spreadsheets or documents (specifically Word
documents). If you download a program off the internet, make sure it is from a very trusted source.
Downloading that game from the cool site that you found last night is probably not a good idea - no
telling what is in the program, waiting to cause havoc on your computer.
As you can see, keeping your system secure is a lot of work. But if you do not do it, you will no be
happy with the results. At the very least, make sure you have a good backup. In fact, if you can only do
one thing, spend the time on your backups. That way you can always recover.
Contents
| News Important news related to the
security of computers, the internet and the web. |
| Using anonymous proxy server
services to hide your TCP-IP address If you have a direct connection to
the internet, such as a DSL or cable modem, then you should consider one of these services to hide
your TCP/IP address. It is very important to use anonymous browsing to protect your privacy online
while surfing. These services are basically anonymous proxy servers which hide your TCP/IP address.
Some of them include remailers to help protect you from spam and junk mail. |
| Internet Privacy Today -
What Are The Issues This is a short article about some of the issues which
effect your privacy on the internet, as well as a recommended solution. |
| Backing up your system is an
essential part of your security scheme Backups are extremely critical to
keep your system secure. If your system is damaged by a virus or an intruder you have a way to
recover. Remember, however, that you must think through and test your scheme. You have many options
in hardware: tape, jazz or zip drives, depending upon whether you are on windows NT, Unix, SUN, ATL,
DEC, IBM, NCR or HP. |
| Preparing for Disaster
Do you use your computer for anything?If you do, then you had better make a backup. You never know
when something could happen to destroy all of your work. |
| Cookies
Cookies (under names like magic cookies, persistent cookies, and just plain cookies) are basically
harmless, but many surfers are very much afraid of them for various reasons. Companies like
Doubleclick use them to track your surfing habits. These can be a great way to personalize your
experience on a web site, though, and sometimes a web site simply will not work. Buy Norton Internet
Security 2000 to selectively delete and add cookies. |
| |
So What's A Cookie For, Anyway? Cookies
were invented for a good reason and have valid uses. It's too bad evil companies have perverted the
concept and threatened our privacy. |
| |
The Fear Of Cookies
Afraid of the lowly cookie file. Here's some of the reasons why you should be. |
| |
Internet Explorer 6 Privacy
With Internet Explorer 6 Microsoft has finally added some real support for privacy. It's not
perfect, but at least it's a start. |
| Protecting Your Children
The internet is a very hostile place to children. It's bright and shiny and fun, but there are
dangers everywhere. Protect your kids from prowlers, pornography and hate sites. Your children's
safety is at stake. |
| |
Report Child Pornography
Report child pornography to the authorities immediately and always so that it can be dealt with. The
world does not need this kind of sum and trash. |
| |
A Dangerous Environment
Think the internet is safe for your kids? Think again, and spend the time now to keep them safe - or
suffer the consequences. |
| Firewalls protect your system
You must protect your system with a personal filewall, especially if you are using DSL or cable
modem. |
| |
DMZ A DMZ is useful to allow some systems to be
exposed to the outside world while still remaining secure. |
| |
Honeypots A
honeypot is used to get hackers to concentrate their efforts on a decoy system. |
| |
Features of a Good Hardware Firewall
So you want to get a good hardware firewall? This article presents some of the things you should
expect. |
| Fraud and scams
Be careful when purchasing or signing onto anything on the web, as it's full of fraud schemes. The
U.S. Securities and Exchange Commission can help with bonds and stocks, while the U.S. Post Office
can help with mail fraud. Remember, there are con men and scams everywhere. (See also
Money Making Opportunities - Scams and Cons) |
| Referrer
You may be unknowingly giving out some of your usernames and passwords as you surf the web. Here's
what's happening and how to stop it. |
| Social engineering is a way to hack
into your system Don't give out your username, password or credit card
data without very good reason and being very sure who the other person is. Hackers use something
called social engineering to get this data from you. |
| |
Social engineering - What is it?
Ever heard of Social Engineering? It's a way that someone can get around your security and steal or
destroy your information! |
| Viruses
The most important thing you can do to protect your system is install a virus checker (also known as
an anti-virus program). These programs will scan your system for viruses and Trojan horses and
delete or repair them. There are several products including those by McAfee and Norton (Symantec).
|
| |
Some More About Viruses There is much
to know about viruses, and it's important that you learn as much as possible to protect yourself. |
| |
The Ultimate In Virus Protection
Learn how to protect your computer and your hard work. Start with a backup plan, install antivirus
software and subscribe to newsletters. |
| |
Outlook Security Patch
If you run Outlook and you want to protect yourself, you should install the Outlook security patch. |
| |
Viruses - Code Red Worm
System administrators will remember the summer of 2001 as a strange time indeed. Code Red and Code
Red II are some of the reasons. |
| |
Viruses - SirCam The SirCam virus is
one of the nastiest and most prolific viruses to hit the internet yet. |
| |
Hoaxes Have you gotten an email
recently which claims your computer will be trashed by a horrible virus? Did you send it out to all
of your friends? Here's what you should have done. |
| |
Setting Up Your AntiVirus Software
First, get some antivirus software. Next, make sure it is configured in the most paranoid way
possible. |
| |
Get Real About Virus Protection
Some people believe they are safe from viruses just because they don't use Microsoft products. They
should think again. |
| Web Bugs
Web bugs are little graphic images inserted into web pages, emails and other web-aware documents to
allow companies to gather information about you without your knowledge. |
| |
Web Bugs Are Crawling Everywhere
You've heard about web bugs. They are little things designed to track your movements. Watch out -
they are exploding all over the internet. |
| Hacker Notes This column is
intended to educate people on what threats exist and how they can defend themselves against them.
|
|
Hacker Notes - Back Doors
Sometimes people create alternate ways to get into your system which bypass the front line security.
These are called back doors. |
|
Hacker Notes - History
Hacking has a long and colorful history. It is very interesting reading. |
|
Hacker Notes - Denial Of Service Attacks
Denial of service attacks have gotten a lot of press lately. What the heck is it? |
|
Hacker Notes - Email Bombs
An email bomb is a way to deny someone access to his email account for a period of time. |
|
Hacker Notes - Passwords
You want to have a hacker on your system? Do what most people do and have weak passwords. |
|
Hacker Notes - Ping Of Death
One common attack method is to send a huge PING packet at a system. Some older or unpatched
operating systems will crash in response. |
|
Hacker Notes - Terms
This article defines some of the terms commonly used by hackers. |
|
Hacker Notes - War Dialer
Hackers often use war dialers to find modems which they can use to crack into your network. |
|
Hacker Notes - Trojan Horses In
order to damage, control or even just examine a system a hacker must convince someone (a user, an
operating system or an application) to install something for him. A Trojan Horse is one way to do
this. |
|
Hacker Notes - Web Site Defacement
A hacker who wants to "leave his mark" might deface a web site. He might also want to leave a
message or simply mock the webmaster. |
|
War Driving, War Flying and War
Chalking With the advent of extremely inexpensive wireless access points,
a new hacking technique called
war driving has appeared. |
|
Hacker Notes - Zombies Sometimes a
virus does not appear to do anything, yet has infected your system. If this happens, you might
actually be helping attack a government, a company or a university. |
| Cyberterrorism
Is cyberterrorism a real threat to the United States? In spite of real possibilities, terrorists
prefer weapons that cause mass deaths and destruction. |
| |
Cyber-terrorism Replies
Got some replies to my article on cyber-terrorism. Here are my responses. |
| |
Let's Use Our Brains, Please
I think it's time to begin to use our own brains and be more discrete about what we make available
on the internet. |
| |
Cyber Warfare
The United States is at war with terrorism. It's realistic to assume that terrorists will attempt
various cyber attacks now and then. So prepare yourself and your network. |
| What is a security
certificate? Security certificates provide a way whereby people can trust one another on the
internet. |
| Physical Security
Working on making your systems more secure? Before doing anything, ensure they are behind locked
doors. |
|
Physical Security - Securing
Your Laptop Laptops are light and easy to steal, make sure your's is not a
statistic. |
|
Clean Your Disk Drives Worried
about security? How about making sure your drives are clean when you throw them out. |
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