Modern society is entirely reliant on the Internet, which acts as a worldwide information source for all users; cyber security is one of today’s most pressing problems, as attackers concentrate on big Companies. This paper mainly concerns toward the protection of cybercrime, how the cyber-attack can be prevented to major extend using technology. As a new researcher cyber security is an evolving topic, Crime cannot be prevented to full extent, but with upcoming digitalized technology we can secure ourselves from intruders to major extent and create social awareness to every individual. The idea or goal of the project is to prevent and avoid the attackers or Hackers from causing data breaches using the latest technology “Blockchain” in picturizing cyber security. An example of cyber-attack in sense we take DDoS attack in personalizing with a website, when the attacker attacks or invades the system unknowing to the user, at this case how the user protects data and Network of a particular system to run smoothly and normally as before as by providing safe flow. In the proposed system using the latest or novel methods we can try to overcome the loopholes of current problems faced to a certain extent by maintaining the flow and increasing both Network integrity and data privacy.