Expression Definition modification of data, and/or denial of service. Unpatched Unpatched software refers to computer code with known security Systems weaknesses. Once the vulnerabilities come to light, software vendors write additions to the code known as “patches” to cover up the security “holes.” Running unpatched software is a risky activity because by the time a patch emerges, the criminal underground is typically well-aware of the vulnerabilities. Virtual World A computer-based simulated environment which may be populated by many users who can simultaneously and independently explore it and participate in its activities and communicate with others. Vulnerability(ies) The existence of a weakness, design, or implementation error that can lead to an unexpected, undesirable event compromising the security of the computer system, network, application, or protocol involved. Work-FromIt is a concept where the employee can do his or her job from home. Home June 2019 LEBANON NATIONAL CYBER SECURITY STRATEGY 54