Protect your computer

Make sure that you have an updated anti-virus software installed on your computer, and a firewall is enabled on that computer.
Make sure that all software on your computer includes the latest security updates.
Make sure you are using a strong password.
Make sure your important data is backed up.
Prevent theft or loss of your computer.
Make sure that the mobile storage devices you use are virus free and stored in a safe place.

The Ten Commandments in Information Security

Use reliable and up-to-date antivirus software. Make sure your computer is up to date with security updates.
Do not open an email from someone you do not know. These messages may be part of phishing and spyware frauds.
Use caution when opening e-mail attachments. E-mail attachments are the primary source of malware.
Click only on links you trust. Especially those included in e-mail and social networks messages.
While surfing the internet, do not install anything offered in a popup window - even if it's free! Usually this is spyware designed to steal details like passwords, credit card details and more
Use strong and different passwords for your social email and messaging credentials.
Keep your passwords in a safe place. Do not keep it on a computer screen, keyboard bottom etc.
Be careful while surfing to unfamiliar sites.
Internet transactions should only be performed on secure (https) and at trusted sites. If the site is unfamiliar, it is advisable not to upload or transfer any personal or sensitive information.
Beware of uploading personal / private information to social sites. Uploaded information is exposed to everybody and cannot be removed. Think well before any action you perform online.