The 21st Century has seen rapid advancements in information technology and telecommunications, particularly in computing hardware and software. As a result, smaller, less expensive and more efficient equipment is available to organizations, businesses and individuals. However, the widespread use of electronic devices and equipment for commercial, social and personal activities on the Internet has raised many privacy and security concerns. The frequency of cyberattacks has increased significantly, and the nature of security risks is constantly evolving. Malicious cyberactivity has caused serious financial damages, amounting to billions of dollars. There is an increasing demand to ensure the security of data transfer services in traditional and emerging Internet-based applications by preventing unauthorized access, misuse, modification or denial of information and information systems. Internet and information security can be ensured by adopting consistent policies and practices and employing the relevant technical measures.