Computers are most often infected by viruses from Internet sources, but it is still possible for viruses to enter a computer even when it is not connected to the Internet. No antivirus program will fully 100% protect you from viruses, as modern viruses often pretend to be useful programs that you install yourself.
- Viruses are most often introduced to your computer by opening infected emails and clicking on links in them.
- Another very common way for viruses to enter your computer is by pretending to be a useful browser plug-in or other useful program that you install while browsing the web. Once the virus is in, it takes control.
- If your computer is not connected to the internet and you do not use any storage media to upload or download data, then the virus will not be able to enter your computer. But why have a computer if you don't exchange information at all? Therefore, viruses can get in by uploading a document from a USB stick or a CD-ROM.
Be aware that the virus may not start working immediately. It may appear that your computer has not been infected for a long time. Often modern viruses are delayed and just wait for the best opportunity.
Viruses can delete or encrypt important data, steal personal information, and track and record your computer work, so it is especially important to check your computer for viruses every so often. And if you see any signs, contact us immediately.
The most common signs that your computer is infected with viruses:
- Your computer is very slow
- Constantly thrown advertising messages and windows
- Computer shuts down unexpectedly