In COVID-19 Pandemic, Internet traffic has been increased by up to 90%. Work- from-home culture is initiated by almost every organization. The technology adapted to access the Enterprises Intranet is VPN (Virtual Private Network). Infrastructure administrators implemented/updated VPN with the latest versions along with the security scripts to access Intranet. However, the contingencies faced by the organizations are out of their scope. Now VPN security is a big challenge for almost every organization. The Veracity is that no one claims the full prove security system in their Infrastructures. The latest Vulnerabilities have been exposed and indexed in context to VPN Hardware’s/Software’s/Configurations and Implementations. In this paper, it has been decided to analyze the exposed VPN vulnerabilities, along with the ongoing issues which have not been listed to date through the survey. The mitigation policies have been proposed based on observations.
Health professionals need an access to various dimensions of Electronic Health Records (EHR). Depending on technical constraints, each organization defines its own access control schema exhibiting heterogeneity in organizational rules and policies. Achieving interoperability between such schemas often result in contradictory rules thereby exposing data to undue disclosures. Permitting interoperable sharing of EHRs and simultaneously restricting unauthorized access is the major objective of this paper. An Extensible Access Control Markup Language (XACML)-based framework, Hierarchy Similarity Analyser (HSA), is proposed which fine-grains access control policies of disparate healthcare organizations to achieve interoperable and secured sharing of EHR under set authorizations. The proposed framework is implemented and verified using automated Access Control Policy Testing (ACPT) tool developed by NIST. Experimental results identify the users receive secured and restricted access as per their authorizations and role hierarchy in the organization.
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