Abstract
Cybersecurity is a sensitive and critical issue across multiple domains. It is a range of technologies, techniques, and practices designed to protect sensitive, priceless data, well-configured networks, source code snippets, and system programs from attackers, damage and unauthorized access. But we are gyratory our daily lives with these concerns, there is a possibility that we setout truthfully suspicious about our own professional and personal safety. Cyber security is also formulating the process of malware detection more actionable, scalable and effective than traditional approaches, which require human intervention. At the same time web technologies and cyber security can contribute to the implementation of the concept of sustainable development. This study gives a brief description about promising issues like cyber space, cyber-attacks, cyber security, cyber-crime, cyber forensic, cyber defamation, cyber terrorism, cyber law and types of cyber-crimes impacts on professionals in the cyber-world. It also forecast how a professional can conscious of current cyber world and also a theoretical discussion and explore on the relationships between emerging issues of cyber security and sustainable development.