In today’s fast-evolving market, cybercriminals and threat actors are also developing. During and after the Covid-19 pandemic, ransomwares have become more frequent, and each year they are getting more advanced and harder to detect.Today, according to sources, there is barely anything stopping ransomware. On the other hand, security products are also improving and progressing with behavioral algorithms, machine learning, and AI. So, the struggle continues…From beginning to end, this thesis will demonstrate many aspects of ransomware. From a brief history, ransomware types and how they function. What the primary entry points are, infection vectors, and main threats.The focus of this study is to help businesses and organizations to protect themselves against ransomware. It will show how to be better equipped and prepared by building a defense strategy that includes the four steps, prevent, detect, defend, and recover.An experiment, market research, and a literature study will be performed. The result will show how some well-known security solutions perform when faced with ransomware.