Nowadays widespread Internet applications
has become an indispensable medium for government agencies, enterprises, and
private organizations to carry out their business communication or daily work.
Inevitably, all kinds of cyber-crime have also emerged. Hackers, in particular,
seriously affect the security of services, transactions, and data by making use
of the weaknesses or loopholes of network systems and, thus, bring about damage
to enterprises. As a result, enterprises adopt firewalls or anti-virus systems
as their basic hacker protections. To prevent hacking once and for all,
however, it takes not only preventive tools but also loophole elimination and
hacking detection. A complete management system and regulations for information
security must be implemented before preventive tools are introduced in order to
put information security into practice and solve particular security problems.
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