IT Security is the most important need of every organization. Especially effective Internet Security has become an essential need for every small, medium or large enterprises using information technology and other internet based services to perform their work easily and effectively. The organization's dependency over Internet has increased the need for internet security implementation and network monitoring inside the organization.

After the introduction of broadband internet, security risks have increased drastically. Nowadays most of the Internet users (home users and professionals) are using broadband internet connection. All companies from private and public sector, non-government organization, educational institutes and financial institutions are dependent on Internet for information exchange. Internet is also a major way of instant communication between two channels. Therefore, chances of information leak, hacking or intrusion are more than earlier days due to increasing dependency on internet.

Security Vulnerability with the Internet connection or Intranet can result following major security threats:

1. Unauthorized access of servers and systems in the network,
2. Unauthorized access of Internet connection for illegal or criminal purposes
3. Stealing, alteration or deletion of sensitive systems and data
4. Denial-of-service attacks, resulting in an inability by users to access systems
5. Viruses or Trojans attack on systems, Virus infections in important data
6. Destruction of websites and online systems

Above described threats are just glimpse of security threats caused by weak Internet Security Mechanism. Information is an asset that, like other important business assets, has value to an organization and consequently needs to be suitably protected. Failure in implementation of proper internet security mechanism can ultimately have worse effect. An organization with no or less effective internet security policy can have following ill effects:

1. Deterioration of organization's overall reputation
2. Reduced public confidence in the agency’s online services
3. Unauthorized disclosure of company's secret information
4. Financial loss through online fraud
5. Financial loss by reducing productive work hours due to intrusion

To secure workplace from potential internet threats, an organization has to adopt proper internet security policy, utilize best available security tools, and practice strict monitoring measures (manual and automated both) inside office premises. With proper planning, technical expertise and continuous efforts an organization can restrict most of the external threats related to Internet Security.