Cyber security is the practice of protecting systems, networks, and programs from digital attacks. These cyber attacks are usually aimed at accessing, changing, or destroying sensitive information; extorting money from users; or interrupting normal business processes. Cyber security may also be referred to as information technology security.

• Cyber security refers to the body of technologies and processes designed to protect networks from attack, damage or unauthorized access
• Cyber security may also be referred to as information technology security
• It is important in present era because organizations collect and save unprecedented amounts of data on computer which may contain sensitive information for which unauthorized access or exposure can have negative consequences
• It is important in present era because organizations collect and save unprecedented amounts of data on computer which may contain sensitive information for which unauthorized access or exposure can have negative consequences.