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Computer Defense for the Common Man And Woman

Archive for July, 2008

Uninterruptible Power Supplies: Superior Protection for Computers and Electronics

Posted by ThePaladin on 24th July 2008

Over the years, studies have shown that power issues (surges, drops, fluctuations and especially “brown outs”) represent one of the biggest threats to your computer and other electronic devices. Unfortunately, most computer users only have part of the story about how to supply power to their PC, and thus, are left vulnerable to untimely component failures.

The media has done a good job of educating the average computer user about the need for a surge suppressor/protector, a device that is typically incorporated into a power strip that protects your computer from large “spikes” in power caused by environmental factors (such as lightening strikes), as well as issues with your power company’s power generation and distribution grid. Unfortunately, what has not been well communicated is the fact that a DROP in power, such as a power outage or a “brown out”, can also wreak havoc on such devices. Even power fluctuations that are detectable only by dedicated circuitry (lights do not dim or brighten enough to notice) can be sufficient to cause damage.

Unfortunately, a surge suppressor only deals with large spikes of power, leaving your computer vulnerable to smaller fluctuations, as well as totally unprotected against power drops and brown outs.

Herein lies the power of the Uninterruptible Power Supply (also known as a UPS).

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Data Backups: Your First and Last Line of Defense

Posted by ThePaladin on 23rd July 2008

Performing data backups is a lot like buying life insurance: You hope that you never have to use it, but if disaster strikes you are so much better off because you followed through on it.

While many people find reasons not to perform backups, data backups are the center piece of a computer defense strategy, no matter if the defense is set against viruses, trojan horse programs, hackers, malicious software (”malware), or hardware failures.

A virus or Trojan Horse program trashed your machine? Restore your system from a backup and you are back in business once again.

A hacker penetrates your computer defenses and goofs with your system in such a way that you do not know what they did or what they left behind? No problem! Pull out your backup and restore your system.

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Gone in 240 seconds: Lifespan of an Unprotected XP Computer on the Internet

Posted by ThePaladin on 20th July 2008

Whoa!

The Internet is a dangerous place indeed!

The Paladin was reading some posts over at the Internet Storm Center (you can check out the original post by clicking here) and was intrigued to find out that some tests were performed to see how long it took for a Windows XP computer to be infected/compromised by a worm or virus or other malicious software once it was placed on the public Internet. Their tests showed that it took an average of four minutes from the time the computer was placed on the public internet until the system was compromised!

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