Keep your personal identity and information secure
Online Banking & Shopping - If others can reach your financial information they may be able to take money out of your bank accounts or make payments using your credit or debit card details.
Personally identifiable information (PII)
Identity thief is very common so avoid leaving unnecessary PII on your computer. Where you do have PII on your computer you should take action to prevent anyone from acquiring it.
For the greater good of the whole internet system and beyond.
By keeping your own system secure you can prevent your machine being commandeered for national or international illegal activities.
Take responsibility and avoid your computer becoming part of a criminal network.