Cybersecurity is critical because the government, military, corporate, financial, and medical organizations collect, process, and store unprecedented amounts of data on computers and other devices. A significant portion of that data can be sensitive information, whether intellectual property, financial data, personal information, or different data types. Any unauthorized access or exposure could have negative consequences. Organizations transmit sensitive data across networks and other devices in the course of doing business. Cybersecurity describes the discipline dedicated to protecting that information and the systems used to process or store it. As the volume and sophistication of cyber attacks grow, companies and organizations, especially those tasked with safeguarding information relating to national security, health, or financial records, need to protect their sensitive business and personnel information. As early as March 2013, the nation's top intelligence officials cautioned that cyber-attacks and digital spying are the ultimate threat to national security, eclipsing even terrorism.
As it is also said, 'Next world war would be a Cyber War.'