The Access control mechanism avoids the unauthorized access of sensitive information. It protects the user information from the unauthorized access. The privacy protection mechanism is a much important concern in the case of sharing the sensitive information. The privacy protection mechanism provides better privacy for the sensitive information which is to be shared. The generally used privacy ...

Unauthorized immigrants and other immigrants who have been in the United States for less than five years have few options for accessing health care through public programs. In light of the ongoing national debate about immigration reform and the impact of the Affordable Care Act on immigrants, we examined differences in health care spending by nativity and legal status using Medical Expenditure...

Firewalls are widely deployed in most organizations connected to the Internet to implement their information security policy and to protect information from unauthorized access. Yet intruders still manage to attack systems and gain unauthorized access to information that is supposedly protected by these firewalls. This article examines some of the history and background of firewalls and what ha...

Revised June 1, 1998 Page 1 of 15 Preventing unauthorized access to sensitive data is essential in environments in which multiple users have access to the same physical or network resources. Operating systems (OSs) and individual users must be able to protect files, memory, and configuration settings from unauthorized viewing and modification. OS security includes obvious mechanisms such as acc...

Trojan Horse attacks can lead to unauthorized data flows and can cause either a confidentiality violation or an integrity violation. Existing solutions to address this problem employ analysis techniques that keep track of all subject accesses to objects, and hence can be expensive. In this paper we show that for an unauthorized flow to exist in an access control matrix, a flow of length one mus...

Fine Grained Access Control (FGAC) provides users the access to the non-confidential database information while preventing unauthorized leakage of the confidential data. It provides two extreme views to the database information: completely public or completely hidden. In this paper, we propose an Observation-based Fine Grained Access Control (OFGAC) mechanism based on the Abstract Interpretatio...

Electronic health record (EHR) system facilitates integrating patients' medical information and improves service productivity. However, user access to patient data in a privacy-preserving manner is still challenging problem. Many studies concerned with security and privacy in EHR systems. Rezaeibagha and Mu [1] have proposed a hybrid architecture for privacy-preserving accessing patient records...

Identification and access management (I/AM) is among the top security issues facing institutions of higher education. Most institutions of higher education require end users to provide usernames and passwords to gain access to personally identifiable information (PII). This leaves universities vulnerable to unauthorized access and unauthorized disclosure of PII as, according to recent literatur...