Access Controls And Access Control Security Essay

Access control refers to the mechanisms that identify who can and cannot access a network, resource, application, specific action.

Formal user access control procedures must be documented, implemented and kept up to date for each application and information system to ensure authorised user access and to prevent unauthorised access. They must cover all stages of the lifecycle of user access, from the initial registration of new users to the final de-registration of users who no longer require access. These must be agreed by IDI. User access rights must be reviewed at regular intervals to ensure that the appropriate rights are still allocated. System administration accounts must only be provided to users that are required to perform system administration tasks.

The Access Control prevention can be built from a standards standpoint that can enable a great number of protective methods in its existence .As www.nyu.edu reminds us “Software Updates: System must be configures to automatically update operating system software, server application (webserver, mail server, database, server, etc),client software(web-browsers, mail-client, offices suites, etc),and malware protection software(anti-virus, anti-spyware, etc).For Medium or High Availability System, a plan to manually apply new updates within a documented time period is an acceptable

This paper has been compiled as the final project for the course: Boston University, MET CS 674 – Database Security. This paper contains all relevant material which aligns with the mission of this course – to teach students the tools and techniques required to secure and audit a database system in the information technology era.

mandatory and discretionary access control policies. ACM Transactions on Information and System Security, Vol. 3, No. 2.

32. Which of the following is the basis of granting access for an object in MAC?

Access control system is a system designed to control entry to prevent intruders into selected areas and manage movement of people/vehicles within. Its purpose is to increase security by determining who, when and where are they allowed to enter or exit.

Role based access control is an ideology through which access to systems is restricted based on authority given. It is used by organizations with a relatively large number of employees ranging from five hundred to one thousand and above (Sieunarine & University of Oxford, 2011). This is implemented through the mandatory access control or through the discretionary access control. These are the only two ways through which role based access control can be implemented.

The purpose of access control, and the rights and privileges is to give users and objects associated data and records in the database. Objects are tables, views, rows and columns. The goal of this design is to manage and secure database and assigning such as user name and password. Management procedures include reading, insert, update and delete or execute stored procedures. In fact, some models such as access control in mandatory access control (MAC), Discretionary Access Control (DAC) and the role of building access control (RBAC). Each one of them has some qualities. And mandatory access control (MAC) means decisions are made by the central authority, but they cannot change the access for individual owner of the object and the owner's rights.

Access control is used to restrict operations, which authorized users can perform. Access control does exactly what it says, it controls what access an authorized user can have. A reference monitor is used for access control and follows instructions from an authorization database. These authorizations are controlled and administered by a security administrator who sets

In addition to audit controls, access controls are important because they help reduce the risk of internal data breaches by preventing unauthorized work staff to have access to ePHI. “Only individuals with a “need to know” should have access to ePHI” (Brodnik, Finehart-Thompson, & Reynolds, 2012, p. 304). Additionally, Brodnik et al., (2012), states that access controls are used to aid in the authentication, audit and authorization process by implementing unique specifications such as: a unique user identification number, emergency access procedures, having an automatic log offs, and by having unique specifications within the system that allows for encryption and decryption

As a business owner, you want to make sure you keep your business secure both during and after working hours. One tool you can use to keep your business as secure as possible is an access control system.

This week the company’s Chief Security Officer (CSO) tasked the IT security and audit group with auditing the company’s current IT system configuration policy and system settings with an emphasis on access control configurations. In a multiple user environment, such as our company and its various business units it is important that the appropriate access restrictions enforce the least privilege model to ensure that employees can only access the data needed for their particular job functions and roles. Without these security configurations and access controls in place, it could be possible for employees to access corporate or customer information when they do not have a valid need. Our security audit will require a detailed analysis of the

An access control example in my community is doors. Having a lock door, will cover access to your home, which is one of the first steps in securing your home. A properly set up fence, will make it even more difficult for someone to roam in your yard. If someone you do not know is inside your fence, it can easily alert you that a potential problem is arriving. Shrubs are another factor in access control. Shrubs can make it very difficult for someone to view inside your home. There are shrubs that can grow up to 15 to 20 feet height. Having many shrubs in your yard can make access to your home feel more of a challenge, which is how a lot of homes in my community are set up.

Access control mechanisms protect sensitive information from unauthorized users. However, when sensitive information is shared and a Privacy Protection Mechanism (PPM) is not in place, an authorized user can still compromise the privacy of a person leading to identity disclosure. A PPM can use suppression and generalization of relational data to anonymize and satisfy privacy requirements, e.g., k-anonymity and l-diversity, against identity and attribute disclosure. However, privacy is achieved at the cost of precision of authorized information., we propose an accuracy-constrained privacy-preserving access control framework. The access control policies define selection predicates available to roles while the privacy requirement is to satisfy the k-anonymity or l-diversity. An additional constraint that needs to be satisfied by the PPM is the imprecision bound for each selection predicate. The techniques for workload-aware anonymization for selection predicates have been discussed in the literature. However, to the best of our knowledge, the problem of satisfying the accuracy constraints for multiple roles has not been studied before. In our formulation of the aforementioned problem, we propose heuristics for anonymization algorithms and show empirically that the proposed approach satisfies imprecision bounds for more permissions and has lower total imprecision than the current state of the art.