Problem solving and online hacking weblog and an online community of online hackers and librarians for library blog.According to security experts, almost half of all home wireless broadband ( Wi-Fi ) networks could be hacked within five seconds. Unfortunately, online piracy has been elusive. websites of government agencies and businesses remain vulnerable. Netizens are also concerned about their cyber security. More worrisome is that South Korea, one of the world’s most wired nations, is still not well-prepared to fend off cyber thugs.