The development of Information & Communication Technology has transformed the world into a global village through the use of the internet and other communication tools to connect people from different geographical locations. However, this development has also caused losses of billions of dollars to the world, and especially Nigeria, due to various forms of cybercrimes, which include Email Spam, Online Charity, Phishing/Spamming, and the spread of computer viruses. The consequences of this necessitate the need for the development of frameworks and techniques to improve cyber security. A framework is a guideline and process through which the government and private sector can mitigate cyber criminals' activities in the country. On the other hand, techniques deal with applications and software to combat cybercrime and protect the cyber environment. In an attempt to do so, this paper employs a mixed method of data collection, presentation, and analysis, which entails primary and secondary source data collection. The objective of this paper is to examine the framework and techniques to improve cyber security in Nigeria. The paper's recommendations include the adoption of effective use of techniques such as Digital Right Management (DRM), IP address tracker, Cryptography, Interactive Voice Response, the establishment of Cyber Security Police Stations, and the introduction of Cyber Education ethics to primary and secondary schools and related tools to mitigate cybercrime in the country. In conclusion, the recommendations provided in this paper would be useful in developing effective strategies for improving Cyber Security in Nigeria. The government and private agencies should take the necessary steps to implement these recommendations to protect the country's cyber environment and prevent the loss of billions of dollars due to cybercrime.

Framework, Techniques, Cyber-Security, Improve, Nigeria