04 Sep 2010 
Support Center » News » Tips to keep your network safe
 Tips to keep your network safe
Posted By: Ken Bagnall On: 09 Jun 2010 4:31 PM
Details These are a few very simple tips to help keep a network safe. They were written after coming across a worrying amount of companies who had viruses sending out spam and couldn't be bothered doing anything about it.

Here are a few tips to help you keep your IT infrastructure working for you and not some cyber criminal in another country.

1. Keep your anti-virus software up to date. No matter what happens this is a good start. Even if new viruses are getting past your software for a few hours at least it may detect a virus when next updated.

2. Make sure your anti-virus software is working. As many of these viruses try and disable the updates of your anti-virus signatures, check that they are updating. If there are any problems call your supplier immediately.

3. Use your firewall. Make sure your company has a firewall in place and use it well. If your firewall is configured correctly it can prevent these viruses becoming active even if they have got on to your net work. This is a bit technical but also make sure port 25 is closed except for traffic from your mail server.(Just make sure your IT company do that for you)

4. Use an email filtering service. This has a multiple of benefits

a. Spam won’t come in so your staff are unlikely to click on any links that will cause any problems.

b. Email filtering services offer more layers of anti virus protection on your email

c. The service will also protect your outgoing email so if you are sending out spam on behalf of one of these gangs it will be stopped. This should prevent you being “Blacklisted” and you will continue to be able to send email.

5. Check your updates. Make sure your software is up to date. Often these criminals will take advantage of weaknesses in common software from vendors such as Microsoft and Adobe. These vendors will in turn offer patches and updates to their software as these problems become known. You need to use these patches and updates to keep your systems safe.

Be certain of one thing, if one of these viruses is on your system and sending out spam, you must get rid of the virus as quickly as possible. If a criminal has remote control of your computer for one purpose there is no reason why he cannot use it for others. They can also take note of your paypal log ins, your bank login etc. If in doubt call in the professionals.


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