PC Security
Protecting your computer from malicious intent.
Its an unfortunate fact of life that there will always be people
who seek to exploit others, usually for profit, sometimes just for kicks.
Any computer, especially one with broadband internet access, is a sitting
target for many types of attack unless properly protected. There are three main
categories of protection you should always have active (and currently updated)
on your PC. If you do not believe your PC is properly protected, call us, we can
help.
Anti-Virus Protection
You should always have an actively running anti-virus
application on your computer. Viruses come in many forms with new ones appearing
everyday. These can cause a bewildering array of effects on your PC, from
relatively benign ones (although still unwanted) to ones that cause tremendous
destruction to your data.
Firewall
Under construction
Spyware Protection
Spyware is one of the newer nasties encountered on the internet.
The term spyware is generally used to describe a range of items including adware,
tracking cookies, trojans etc.
Spyware therefore takes many forms, it may
simply track your internet usage habits and report them back to advertisers, or
it may do worse. It can change your home page continually, alter the results you
get from search engines to send you to sites they wish you to visit, they can
record every key you type on your keyboard and report it back to 3rd partys, all
this and more can be done without your consent or knowledge. Your machine could
even be hijacked and used as part of a botnet designed to crash web servers or
send out thousands of spam emails, yet you machine would appear to be operating
normally and you certainly would not see the evidence of any spam sent in your
normal outbox or sent mail folders.
Normally if a machine has been infected by
any spyware, it will have suffered multiple infections by various different
ones, and this is what usually gives rise to the only clue the user has that
there may be a problem - their machine starts to run slower - sometimes so
slowly as to be unusable. There can be many reasons why a PC begins to run
slowly, but all too often these days Spyware is a large contributory factor, or
indeed the sole culprit.
Spyware can be "contracted" in many ways, often
unscrupulous websites will install it (without your permission) when you visit
them. More commonly spyware is installed in the form of a trojan, but what is a
trojan? Remember the story of the Trojan horse? The Greeks gave the people of
Troy a large wooden horse, with a secret, it was hollow and Greek soldiers were
hidden inside waiting to attack. Well in a similar manner with computers a
trojan is a piece of software you do not want which you receive hidden within
another piece of software. The best way to avoid this is to steer clear of any
free software unless it comes from a reputable source. If anything offers itself
to you on the net, without you having specifically looked for it, be wary.
Unsolicited offers to give you a free weather toolbar, or calendar, or animated
cursors and smilies etc etc, all too often contain unwanted spyware elements. Be
wary of free software, this is especially true in the case of anti-spyware
products. Whilst there are some excellent anti-spyware products available for no
charge, there are many more rogue anti-spyware products around. These rogue
products will usually give false positives (i.e. claim to have found spyware on
your PC when in fact you may not have any, or they may not have actually checked
your PC at all!) and try to entice you to pay for a "Full" or "Premium" version
of their product in order to remove the "infections" it has found.
At the risk of boring you and repeating the words once again, its very
important, be very wary of any free software. Especially if it offers itself to
you when you have not specifically looked for it.