virus

Virus is a kind of malicious software that can spread from a computer to other computers in a network. It can infect the files in different ways and make it impossible to work.

All AAU computers have an antivirus program installed to prevent viruses from infecting your device. It is updated regularly. However, new viruses and malware are constantly emerging, and it is therefore important that you use your common sense and are especially aware when you:

  • download and install content from the web
  • open attachments in emails from senders you do not know.
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    Malware

    Malware is a common term for malicious programs that have been installed on your computer - often without your permission. Malware is a merge of "malicious" and "software".

    You can get malware if you have clicked on a link in an email, downloaded and installed an unknown program, or opened a file from an infected USB stick.

    Malware can have different purposes. Some types of malware spy on your behavior, eg intercept information about your bank account, credit card, or other information that can be exploited. Others take over parts of your computer and use it to send out spam. In particularly bad cases, a malware program is used to hijack your files and demand a ransom for you to access them again.

    Examples of Malware:

    • Virus: program or algorithm that destroys programs and files
    • Spyware: collects information about you and your behavior
    • Adware: sends advertisements on your computer eg in pop-up windows
    • Ransomware: encrypts files on your computer and requires a ransom before you can access them again

    What you can do to avoid malware:

    • Use your common sense
    • Do not click on suspicious links
    • Do not install unknown programs on your computer
    • Scan suspicious files from others before opening them
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    Ransomware

    Ransomware is a type of malware that locks, encrypts or steals data from individuals and companies for extortion. The material is "taken hostage" and only unlocked or given back when a ransom has been paid. The ransom is normally approx. 2000 to 3000 kr for a computer, and payment is often required in Bitcoins, a virtual currency that is difficult to track.

    Tips to avoid ransomware:

    • Make sure your computer has a solid security solution
    • Make regular backups
    • Keep the software on all your devices up to date
    • Be aware of email attachments from unknown senders
    • Limit the use of browser plugins