Cyber security, also referred to as information technology security, focuses on protecting computers, networks, programs and data from unintended or unauthorized access, change or destruction. Governments, military, corporations, financial institutions, hospitals and other businesses collect, process and store a great deal of confidential information on computers and transmit that data across networks to other computers. With the growing volume and sophistication of cyber attacks, ongoing attention is required to protect sensitive business and personal information, as well as safeguard national security.
Cyberspace is difficult to secure due to some factors: malicious actors are capable to operate from anywhere in the world, the link between cyberspace and physical systems, and vulnerabilities and consequences in complex cyber networks. Critical infrastructures are under threat, as it creates new risks. As physical infrastructures are integrated rapidly to cyber space, it causes an increase of wide scale risks. Due to these risks, we need to strength our security layers.