Use the anti-virus software.
If you are using a Windows computer, you should use antivirus software such as AVG or Sophos. Be sure to regularly install software updates and perform malware scans.
Remove suspicious web addresses.
This is a necessary pre-hyperlink (especially shortened links) from external sources such as those you do not know. If you are required to log into an account or provide payment details, please manually remove the URL links and log in directly to legitimate sites to ensure that it is not a fake site.