But if I don't have a browser open and I am just playing a game offline, can my computer still be at risk?
Timberwolf5578
Yes, here's why
If your computer is connected to the internet then the answer is technically yes, but it is the less likely way of getting one. If you are on a cable modem or other high-bandwidth internet then your chances increase. If you are on a LAN with a lot of other computers, then your chances are much higher for this method of transmission.
The reason you are still at risk is because there are some types of viruses that just randomly check computers across a network (or to a lesser extent, the internet) and see if they have any vulnerabilities that they know how to take advantage of. If your computer does not have the latest operating system updates, there is a higher chance you will have a vulnerability a virus can take advantage of. Once the virus notices you have this vulnerability, it will take advantage of it and copy itself onto your computer. Then you got a problem on your hands.
You can get this type of virus even if you are not using the computer. It just has to be on and connected to the internet.
How to protect yourself
Getting antivirus software is a good idea, but what is even more important is keeping your OS up-to-date. Use the Windows Update tool and always download and install the recommended updates. This will ensure that all known vulnerabilities are patched/fixed. A firewall is also a great way to prevent this. You can use the Windows Firewall that comes with XP (and Vista I assume) or if you are using a router, your router will have a firewall as well.
Other notes
For what it's worth, I have never known anyone using a 56k modem to get a virus this way. I have seen people get this type of virus being connected to the internet via a LAN connection on a huge network. It was actually quite common. And I want to say I have seen someone get this via a cable modem connection, but I cannot verify this. I think it is much more rare to get a virus this way if you are just on a cable modem or DSL connection.
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