Cybersecurity is a fast-growing field of IT concerned with reducing organizations' risk of hacks or data breaches. According to research from the Enterprise Strategy Group, 46% of organizations say that they have a "problematic shortage" of cybersecurity skills in 2016, up from 28% in 2015. Commercial, government, and non-governmental organizations all employ cybersecurity professionals. The fastest increases in demand for cybersecurity workers are in industries managing increasing volumes of consumer data such as finance, health care, and retail. However, the use of the term "cybersecurity" is more prevalent in government job descriptions. And prevention of cyber security is said here. Today, due to the modern lifestyle, people have joined technology life and use more technology for shopping and financial transactions in their cyberspace. At the same time, the safeguarding of knowledge has become increasingly difficult. In addition, the heavy use and growth of social media, online crime, or a cybercrime has increased. In the present world information security plays an important role. Whenever we think of cyber security, we think of 'cybercrimes,' which expand tremendously every day. Different governments and businesses take various steps to avoid this form of cybercrime. In addition to numerous cyber protection initiatives, many people are also very worried about it. This paper focuses primarily on cyber security concerns related to the new technology. It also concentrates on the new technologies for cyber security, ethics, and developments that impact cyber security. KEYWORDS: Cyber-security, cyber-crime, hacking, android apps.