Sample internet security plan
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Website Security Considerations - An Evaluation
Unfortunately, there are several ways in which website security can be imperilled. For example, security hazards lurk insidiously that have an effect on Web servers and LANs (local area networks) where Web sites reside, even by the normal use of a Web browser.
Web Masters are in the front line when managing the major threats. As soon as a Web server is set up at a site, a porthole is constructed in the local area network through which anyone who's on the Internet can look. Certainly, the majority of web site visitors see no more than what they're meant to see, but some try to locate parts of the site that are not meant to be perceptible to the rest of the world. Unscrupulous visitors want to go further than just look; they make an attempt to open the window and sneak through. The damage they could cause might be mere vandalism, like changing the web site's home page with their own that could say or display anything, or it might be robbery, such as gaining possession of a customers or sales database.
It is hard to escape the probability that convoluted computer software has bugs. Regardless of how methodically it's tested, there does exist frequently a particular combination of events or user actions, while it may be infrequent, that leads to an error. Software bugs produce gaps in system security. A Web server is involved software which can very easily include a security defect.
It's not only the intricacy of a Web server that can cause a problem, but also its open architecture. Consider a CGI script as an illustration. A CGI script can be processed at the server in reply to a remote request from a client. It could be a request from an application or even the click of a button in a browser. If the CGI script contains a bug, there is a risk of a security breach.
Network Administrators also have to take on problems from Web servers due to the threat they pose to the security of the local area network. Though there should be no unauthorized intrusions, admittance has to be given to website visitors. This means that access to the network must be regulated. The Administrator therefore needs to perform a delicate balancing act. Even the most sturdy firewall may be compromised if the Web server is configured badly. By the same token, normal use of the website can be impossible if the firewall is configured badly. Finding a perfect resolution is even more complicated if an intranet exists as a constituent of the system. Commonly, the Web server then needs to be configured to distinguish and authenticate domains and user groups, which are liable to have differing permission levels and access rights.
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Nearly everybody using a browser to surf the Net trust that they really are doing so in secret and in safety. It is not the case. Web browsers are able to run self-contained software on the client computer which are hosted by a web site. Modern browsers show a caution and request authorisation to run those programs. Known generally as "active content", e.g., ActiveX controls or Java applets, these programs, if malicious, may easily install a virus or other hazardous software on the browser user's machine. When it is in the system it can inflict all kinds of damage and can be exceedingly problematical to eradicate.
This is also a worry for Network Administrators. Web browsers offer a way for possibly malicious software to filter through the local area network's firewall. After it is in the network, the harm it can cause can vary from clandestinely stealing sensitive data to meaningless demolition.
Aside from the issues to do with active content, just surfing the Net leaves a trail of the user's activities in the browser's history. This could be utilised by web sites and installed software programs to determine an exact report of the user's behavior and preferences. Whereas this might be considered an invasion of privacy by some, it can be beneficial by supplying related subject matter at once, thus exonerating the user of the job of searching for it.
Confidentiality is a problem that worries not just browser users but also Web Masters and Network Administrators during the actual transmission of data via the Internet. TCP/IP (Transmission Control Protocol/Internet Protocol) is the fundamental language of communication for the Net. When it was formed, security wasn't the principal feature of its design. Both network and Internet transmissions should therefore not be considered as essentially private. Every time the browser on a local computer downloads a sensitive document from the remote Web server, or the browser user fills out a form with personal information and clicks the 'Submit' button, the transmitted data may be intercepted without authorisation.
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