Cyber Security plays a very important role within the field of knowledge technology. Our attention is sometimes drawn on “Cyber Security” once we hear regarding “Cyber Crimes”. Securing the data became one amongst the most important challenges within the present day. Once ever we expect regarding the cyber security the primary issue that involves our mind is ‘cyber crimes’ that square measure increasing vastly day by day. Varied Governments and firms square measure taking several measures so as to stop these cyber crimes. Besides varied measures cyber security continues to be an awfully massive concern to several. This paper chiefly focuses on challenges long-faced by cyber security on the most recent technologies. It additionally focuses on latest regarding the cyber security techniques, ethics and also the trends dynamic the face of cyber security. The paper additionally describes the challenges to lack of coordination between Security agencies and also the vital IT Infrastructure.