There has been an increase in software that appears to be scanning your computer for security but is in fact a nasty piece of Malware that could lock up your computer, cause fake system crashes and steal personal information.
Software names such as Antivirus XP 2008 or Cyber Security look like they are genuine security products with authentic looking screens. They will pop up occasionally, warning you that they have discovered a security threat and scan the hard drive. What they are actually doing is gaining greater control of your PC, causing it to crash, reboot and leak your personnel information.
See a list of the rogue security software here: http://en.wikipedia.org/wiki/Rogue_security_software
The good news is that the removal of the software is fairly straightforward. Please get in touch for more information.