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In many online applications, the range of content that is offered to users is so wide that a need for automated recommender systems arises. Such systems can provide a personalized selection of relevant items to users. In practice, this can help people find entertaining movies, boost sales through ta
Dit onderzoek beschrijft de invloed van ICT op de 'traditionele' misdrijven door te onderzoeken hoe delicten als inbraak, overvallen en fraude doordrongen zijn van ICT. In totaal zijn 136 woninginbraken, 140 commerciële inbraken, 259 bedreigingen en 274 fraudeza-ken onderzocht. Uit de resultaten bli
We propose the concept of selective document retrieval (SDR) from an encrypted database which allows a client to store encrypted data on a third-party server and perform efficient search remotely. We propose a new SDR scheme based on the recent advances in fully homomorphic encryption schemes. The p
SCADA (Supervisory Control and Data Acquisition) systems are used for controlling and monitoring industrial processes. We propose a methodology to systematically identify potential process-related threats in SCADA. Process-related threats take place when an attacker gains user access rights and perf
Online Social Networks (OSNs) have become part of daily life for millions of users. Users building explicit networks that represent their social relationships and often share a wealth of personal information to their own benefit. The potential privacy risks of such behavior are often underestimated
Industrial Control Systems (ICS) are used for operating and monitoring industrial processes. Recent reports state that current ICS infrastructures are not sufficiently protected against cyber threats. Unfortunately, due to the specific nature of these systems, the application of common security coun
This is a book on the “dark side” of information technology, as it describes how the vulnerabilities of systems and networks can be exploited to gain unauthorized access. It is important that students and practitioners understand how advanced the state of the art in exploiting vulnerabilities is, si
Nowadays, recommender systems have been increasingly used by companies to improve their services. Such systems are employed by companies in order to satisfy their existing customers and attract new ones. However, many small or medium companies do not possess adequate customer data to generate satisf
A good phishing site should resemble the target site as much as possible, and it should hide the differences with the target site, at least to the unsuspecting user. This paper leverages this observation to cluster similar suspected phishing sites. Then, instead of crowd-sourcing the verification of
Information security is all about the protection of digital assets, such as digital content, personal health records, state secrets etc. These assets can be handled by a party who is authorised to access and control the asset or a party who is not authorised to do so. Authorisation determines who is
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