Critical care providers are often privy to confidential information in the course of clinical practice. A dilemma can arise when confidential information is requested by family members or friends of the patient. Critical care nurses must be aware of the regulations regarding confidentiality, as well as situations where the use and disclosure of protected health information are permitted.

Trust management systems are vulnerable to so-called probing attacks, which enable an adversary to gain knowledge about confidential facts in the system. We present the first method for deciding if an adversary can gain knowledge about confidential information in a Datalog-based policy.

Bu çalışma, I. Dünya Savaşı sırasında İngiliz istihbaratının yurtdışı (MI6) kollarından olan Arap Bürosu’nun gizli yayın organı Bülteni üzerine bir incelemedir. 1915'te ilan edilen Osmanlı cihadına karşı etkili mücadele yöntemine ihtiyaç duyan Londra, savaş süresince Orta Doğu’daki dengeleri elinde tutabilmek amacıyla Mısır Yüksek Komiserliğine bağlı İstihbarat Servisi’nin kolu olarak Bürosu'nu...

The management of private and confidential information is a major problem for dynamic organizations. Secure solutions are needed to exchange confidential documents, protect them against unauthorised accesses and cope with changes of people’s roles and permissions. Traditional cryptographic systems and PKI show their limitations, in terms of flexibility and