As mentioned above, cyber security is the practice of defending your electronic systems, networks, computers, mobile devices, programs and data from malicious digital attacks. Cyber criminals can deploy a variety of attacks against individual victims or businesses that can include accessing, changing or deleting sensitive data; extorting payment; or interfering with business processes.You don¿t need to be a cyber security specialist to understand and practice good cyber defense tactics. This guide can help. Yoüll learn more about cyber security and how to help defend yourself against cyber threats, and how to recognize and avoid threats before they infiltrate your network or devices