This document discusses security and ethical challenges in information systems. It defines MIS security as measures to protect information systems from unauthorized access or compromise. Some key security challenges are hacking, cyber theft, and computer viruses. Privacy issues on the internet and in computer matching and laws are also discussed. The document emphasizes that ethics in IT creates trust and prevents issues like unauthorized access and conflict. Unethical workplace behaviors can include misusing company time and resources or violating internet policies. Managing these challenges requires following codes of conduct, focusing on work, being honest, and building character with security controls like encryption and firewalls. The conclusion states that technical security alone is not enough, and ethics help achieve better overall system protection.