What is Cyber Security ?

Cybersecurity is the protection of Internet-connected systems, including hardware, software, and data from cyber attacks. It is made up of two words one is cyber and other is security. Cyber is related to the technology which contains systems, network and programs or data. Whereas security related to the protection which includes systems security, network security and application and information security.

Why is cybersecurity important?

We live in a digital era which understands that our private information is more vulnerable than ever before. We all live in a world which is networked together, from internet banking to government infrastructure, where data is stored on computers and other devices. A portion of that data can be sensitive information, whether that be financial data, personal information, or other types of data for which unauthorized access or exposure could have negative consequences.

Cyber-attack is now an international concern and has given many concerns that hacks and other security attacks could endanger the global economy. Organizations transmit sensitive data across networks and to other devices in the course of doing businesses, and cybersecurity describes to protect that information and the systems used to process or store it.

As the volume of cyber-attacks grows, companies and organizations, especially those that deal information related to national security, health, or financial records, need to take steps to protect their sensitive business and personal information.

History of Cyber Security.

In 1969, Leonard Kleinrock, professor of UCLA and student, Charley Kline, sent the first electronic message from the UCLA SDS Sigma 7 Host computer to Bill Duvall, a programmer, at the Stanford Research Institute. This is a well-known story and a moment in the history of a digital world. The sent message from the UCLA was the word "login." The system crashed after they typed the first two letters "lo." Since then, this story has been a belief that the programmers typed the beginning message "lo and behold." While factually believed that "login" was the intended message. Those two letters of messages were changed the way we communicate with one another.

In 1970's, Robert (Bob) Thomas who was a researcher for BBN Technologies in Cambridge, Massachusetts created the first computer worm (virus). He realized that it was possible for a computer program to move across a network, leaving a small trail (series of signs) wherever it went. He named the program Creeper, and designed it to travel between Tenex terminals on the early ARPANET, printing the message "I'M THE CREEPER: CATCH ME IF YOU CAN."

An American computer programmer named Ray Tomlinson, the inventor of email, was also working for BBN Technologies at the time. He saw this idea and liked it. He tinkered (an act of attempting to repair something) with the program and made it self-replicating "the first computer worm." He named the program Reaper, the first antivirus software which would found copies of The Creeper and delete it.

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