What is Information Security?
Information security is the process of protecting information and information systems from unauthorized access, use, disclosure, disruption, modification, perusal, inspection, recording or destruction. It protects its confidentiality, integrity and availability also known as the C.I.A:
Confidentiality - protecting information from being disclosed to unauthorized parties.
Integrity - protecting information from being changed by unauthorized parties.
Availability - of information to authorized parties only when requested.
History of Information Security
The history of information security started in the 1960’s after the first mainframes were developed with code-breaking computations and the need of computer security which occurred during the period of World War II. As such multiple levels of physical security were enforced in order to secure the system’s information. Eventually as more mainframes were brought into the picture the Department of Defense’s Advanced Research Project Agency (ARPA) began a networked communication system to exchange military information. From there ARPANET the predecessor of the internet was formed by Larry Roberts, also known as the founder of the internet.
During the 1970’s and 1980’s the ARPANET became widely popular and used creating possibilities for misuse on many levels and such fundamental problems with the security were identified. Such as:
* No safety procedures for dial-up connections to ARPANET
* Nonexistent user identification and authorization to system
Seeing that more advanced security was needed. This led to the creation of MULTICS (Multiplexed Information and Computing Service), an operating system with security being its main concern. From MULTICS spawned the UNIX operating system which did not require the same in-depth levels... [continues]
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