Physical access

Abstract: Access control constrains what a user can do directly, as well as what programs executing on behalf of the users are allowed to do. In this way access control seeks to prevent activity that could lead to a breach of security. This article explains access control and its relationship to other security services such as authentication, auditing, and administration. It then reviews the access matrix model and describes different approaches to implementing the access matrix in practical systems, and follows with a discussion of access control policies commonly found in current systems, and a brief consideration of access control administration. >

Abstract: Cyber security is that the body of technologies, processes and practices designed to safeguard networks, computers, programs and knowledge from attack, harm or unauthorized access. During a computing context, the term security implies cyber security. This survey paper describes a targeted literature survey of machine learning (ML) and data processing (DM) strategies for cyber analytics in support of intrusion detection. This paper focuses totally on cyber intrusion detection as it applies to wired networks. With a wired network, associate oppose must experience many layers of defense at firewalls and operative systems, or gain physical access to the network. The quality of ML/DM algorithms is addressed, discussion of challenges for victimization ML/DM for cyber security is conferred, and some recommendations on once to use a given methodology area unit provided.

Abstract: For a long time, a common opinion among policy-makers was that the digital divide problem would be solved when a country’s Internet connection rate reaches saturation. However, scholars of the second-level digital divide have concluded that the divides in Internet skills and type of use continue to expand even after physical access is universal. This study—based on an online survey among a representative sample of the Dutch population—indicates that the first-level digital divide remains a problem in one of the richest and most technologically advanced countries in the world. By extending basic physical access combined with material access, the study finds that a diversity in access to devices and peripherals, device-related opportunities, and the ongoing expenses required to maintain the hardware, software, and subscriptions affect existing inequalities related to Internet skills, uses, and outcomes.

Abstract: Access rights of users of a computer network with respect to data entities are specified by a relational database stored on one or more security servers. Application servers on the network that provide user access to the data entities generate queries to the relational database in order to obtain access rights lists of specific users. An access rights cache on each application server caches the access rights lists of the users that are connected to the respective application server, so that user access rights to specific data entities can rapidly be determined. Each user-specific access rights list includes a series of category identifiers plus a series of access rights values. The category identifiers specify categories of data entities to which the user has access, and the access rights values specify privilege levels of the users with respect to the corresponding data entity categories. The privilege levels are converted into specific access capabilities by application programs running on the application servers.