Computer Security is the process to protect your computer from unauthorized use. The prime aim of computer security is information security Information Security means:

Information shouldn't be available to all; it should be available to only those who have full rights to access it. It should be accessible to those who need it. Only authorized person should modify the information.

Home computer owners shouldn't allow any stranger to look through any of their important document. Keep everything in your computer confidential, weather it's an important document or email messages send to the family friends. The stored in your computer should remain intact and it should be available at the time of requirement.

Intentional misuse of your home computer can create some security risks. Your computer can be misused intentionally by intruders via Internet or even some risks arises even if your computer is not connected Internet also. Like disk failure, theft, power outage etc. and a home computer owner cannot be plan for all these possible risks. Risks arise because of various reasons.


These are the few common methods used by intruders to gain a control over home computers.

Sometime intruders install some virus programs to the computer and can gain full access over it. And without the knowledge of computer owner they can change the configuration of the computer.

Intruder can gain access over a home computer by installing some backdoor administration program.

Intruder can crash home computers through denial-of-service (DoS) attack.

When a large number of computers attached to the Internet with unprotected windows networking shares. Intruders can exploit these computers.

Sometime mobile codes may create some risks. By using this code intruders can run some malicious code in the computers.

As we know information are send in the form of packets over Internet. By using packet sniffer program data can captured from those packets. And capturing these data intruders can get the user details from the packets.

Intruders can attach some virus with your email message. By opening this mail your computer can get infected with this virus.

Those are the few security, which arises when a home computer is connected to Internet. Some other risks, which arise if the home computer is not, connected Internet. Like Disk Failure, theft, power failure etc.

These are the few actions, which can be taken to protect the home computers.

Use some Antivirus software when your computer is connected to Internet, and always keep your anti-virus software up-to-date. Much anti-virus software updated automatically.

Use a strong firewall. Networks firewalls can provide some degrees of protection from these attacks.

Never run any program on your computer if a person or company does not authorize it you know.

Connect your system to the network only at the time of requirement. Disconnect your computer's Ethernet card when not using it.

To avoid the risks arises due to mobile code disable all scripting language of your web browser. In addition to disabling the scripting failure of web browser disable the scripting feature of email program.

Take a regular backup of important data & keep it in the disk in zip format.

Use an uninterruptible power supplier (UPS) to recover from power possible.