The F-Secure security company launched a free online tool – Health Check which is designed to help us to identify security updates needed on our computer. It gives us a full report on the status of our computer.F-Secure is one of the leading security companies in the world providing security solutions like F-Secure antivirus. The service (Health Check) provides through their F-Secure portal and this tool scan our computer in search of software vulnerabilities that could cause to attack by viruses and spy ware.
To access this service, you should be using Internet Explorer and ActiveX component.
Other browsers currently are not supported.(source)
1 - AOL Active security monitor – Keeping our system health
2 - Secunia PSI – Protects our system from Software Vulnerabilities