Principles of Computer Security

Computer systems are usually designed to perform a specific function and provide essential services and important for an organization . The computer system is part of a company . As in the rules , we need to protect the system from attack or disruption that is part of the company's capital protection . Steps taken to prevent disruption or failure of a security measure . These actions include checking the validity of input data , and the provision of fire-resistant storage for media and protect the data that is in it . Encrypting data in the communication network is an example of a security measure .Threats can come from everywhere, some of them obvious , some not. Unavoidable , computer power supply can be interrupted at any time , especially in bad weather during the rainy season . Programs can be exposed to viruses or bugs are not known .
Media such as disks can be corrupted . Staff become careless and even criminal acts .There are two forms of threats : accidental and intentional . Fires can be caused by an accident , but a deliberate fire is always a possibility that should be considered . Intentional threats are always accompanied by human desires . Defense against intentional threats should be taken into account . If your house has a front door key to the good , then it can deter thieves . Thieves also continue to find ways to move more easily on the go . Unintentional threats never follow a pattern like this . Usually unintentional threats from natural factors such as weather . Rain and thunder did not inspect your roof . Rain will continue to fall , if your roof is leaking, what a pity ! On the other hand do not like thieves , rain will not stop anywhere and try to find the easiest way if you are a strong roof .A choice of security measures are part of the risk management process . Basically one has to take into account all the possible threats that can affect the smallest system . Then the resources available for security measures need to be applied to actions that will prevent loss of the smallest . In other words you have to spend money for the move that would give a great advantage .A future post I will discuss about the securing of the computer system to another . Best wishes.Physical security ComputerThe physical environment has a big influence on computer programming systems . Proper consideration of factors such as site , building design and construction is essential . Particularly at the planning level . Easier to eliminate or reduce the problem 's difficulty level . Existing buildings can have a security problem is not solved , because the building design , construction or where construction is not allowed to be changed.Factors to consider1 . Computer installation location poses some risks that affect it . Some places are targets of natural risks such as weather and soil stability itself. The place was also subjected to environmental risks resulting from human activities in the vicinity. Path to the international airfield particular chemical process plant is an example of an environment that is not expected .2 . Weather and natural hazards as a result is the most important for many places . Wind , rain , snow and ice clear consequences and often dramatic . Only a few places that are resistant to adverse weather conditions .3 . Environment . Activities of people around a further risk . Some of them are pretty obvious . Path to the airfield increase the risk of a plane crash . Around the steep streets of motor vehicles , if the intensity is high , increase the likelihood of severe accidents . This can cause the release of toxic gases or cause an explosion .Public service is very important for every installation . This includes the provision of electricity, gas , water , sewer .