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Internal Intrusions - usually the most hurtful, this where
an employee of a company or friend or family member accesses the
company network or personal computer to cause damage. This can only
be stopped by physical measures and not by computer software.
External Intrusions - this where a hackers tries to attack
and access computers over the Internet and this can be stopped by
installing security software such as a Firewall.
Social Intrusions - this is where hackers pose as things
such as system administrators asking for your password. No computer
software can stop a hacker armed with accurate stolen information.
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Therefore we will concentreate on external instrusions. The problem
with the Internet is that the orignal designers didn't consider
user privacy and data. Home computers can hold such things as store
credit card numbers, account numbers, business contacts, and other
confidential information for online commerce, banking, or stock
trading. Even if your system does not hold your credit card number,
a hacker can use your computer to obtain this information from others.
Furthermore, home computers are easy targets. Therefore it is a
good idea to implement software to protect yourself. The best way
to protect yourself from unauthorized access is by installing a
firewall on your PC. For hackers to break into your system, they
must first locate your computer and this is where a Firewall works.
A good Firewall package will analyzes each individual packet received
or sent from your computer and detect and identify attacks by hackers.
Some Firewall packages may also collect information about the hacker,
such as the attacker’s IP, DNS and MAC addresses. You can find
a wide variety of good Firewall packages from companies such as
Symantec Norton or McAfee, they also make virus scanners as well.
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Latest Questions
- Someone is attempting to scan the ports on my computer
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Question - I am receiving, on almost a daily basis,
a message stating, that someone is attempting to scan the
ports on my computer.
(Attacker address - 217.**.***.31) Modem.
Answers - When you’re connected to the Internet,
there is some level of exposure inherent to online connection.
What is visible is your ports and your IP address. Ports
are how information transfers between your computer and
the Internet. A ill-intentioned individuals can scan your
ports and if some ports are open, they can use those ports
to exploit your computer. The best way to protect your computer
is by using a firewall which aims to block these exploits
and make it hard for individuals to scan your ports. You
can also use programs such as IP Lookup to find the owner
of an IP block
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