The book is the culmination of the experiences gained while training 5000+ teachers under the Ministry of Education, Government of India’s, Pandit Madan Mohan Malaviya National Mission on Teachers and Teaching (PMMMNMTT) Faculty Development Centre in Cyber Security & Data Sciences, Shivaji University, Kolhapur. At the outset, the authors are therefore grateful to this unique educational and skill-building project, as it has national repercussions on safety and security. Prof. R. K. Kamat, the Principal Investigator and all the authors are proud to be associated with this noble objective. As the world becomes more interconnected, countries spend increasing amounts of money on cyber security. A lot of cyber-attacks have taken place recently, and it is estimated that they may cause up to US$ 2 Trillion in damage per year by 2021. For example, in May 2017, a ransomware attack called ‘Wanna Cry’ affected over 300,000 computers in over 150 countries by encrypting users’ hard drives. This caused multiple industries to be disrupted, including banks, schools, hospitals and government agencies. Another example is the 2016 hack of the Democratic National Committee’s e-mails which resulted in many controversies during the United States elections. Last year also saw Malaysia Airlines having many of its Twitter accounts hacked. The hacker group, ‘Lizard Squad’, claimed responsibility for these hacks and targeted other airlines such as Air Asia. These cyber-attacks have a considerable effect on the economy, and so there is a growing interest in cyber security. In particular, the manufacturing industry has a greater vulnerability to cyber threats as many industrial facilities are interconnected. Cyber-attacks can be especially harmful when they cause physical damage in factories, for example, when hackers take over the controls of a robotic arm or other machinery.