Recently, there are too many malicious programs as like Worm viruses which make computers slow and Trojan viruses which are leaking the users information. By KISA(Korea Information Security Agency) on 30th Oct, the report of worm virus was 865 in Sep. This number of virus increased by 26.6% than 683 of August.

To protect user against those malicious codes, the Korean portal sites started to supply free online vaccine in their Tool bar for free security service to the users.
Empas which is big portal site in Korea (www.empas.com) started providing "Empas Toolbar 2.0” on their website and “ViRobot SDK” provided by HAURI is built in Empas Tool bar 2.0