Access Control

Symposium on Access Control Models and Technologies (SACMAT'26)

I am live blogging Symposium on Access Control Models and Technologies (SACMAT'26) which is being hosted by the University of Waterloo this year. The below summaries are my …

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Kami Vaniea
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Composition of Access Control Schemes via Co-Existence: Three Case-Studies

We address composition of access control schemes which include both a model to encode authorizations, and an administrative model to encode the manner in which such authorizations …

Indrani Ray
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Understanding Privacy Switching Behaviour on Twitter featured image

Understanding Privacy Switching Behaviour on Twitter

Changing a Twitter account's privacy setting between public and protected changes the visibility of past tweets. By inspecting the privacy setting of more than 100K Twitter users …

dilara-kekulluoglu
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Twitter Privacy featured image

Twitter Privacy

Twitter has a relatively simplistic privacy setting of an account being either public or protected, yet many people are still confused about how the settings work. The project …

dilara-kekulluoglu
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Access Control for Home Data Sharing: Attitudes, Needs and Practices

As digital content becomes more prevalent in the home, nontechnical users are increasingly interested in sharing that content with others and accessing it from multiple devices. …

michelle-l.-mazurek
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Evaluating Assistance of Natural Language Policy Authoring

The goal of the research study reported here was to investigate policy authors' ability to take descriptions of changes to policy situations and author high-quality, complete …

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Kami Vaniea
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Access Control Policy Analysis and Visualization Tools for Security Professionals

Managing large sets of access-control rules is a complex task for security administrators. Each addition, deletion or modification of a rule causes many potential and unknown side …

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Kami Vaniea
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