Filter by content type
Select one or more filters. This choice will reload the page to display the filtered results.
632 results
-
-
Seminar
-
SoSysec
Does Facebook use sensitive data for advertising?
Speaker : José González Cabañas (Universidad Carlos III de Madrid, Spain)
Large online platforms use personal data, for example, your interests, to allow advertisers to reach you based on the things you like. But did you know some of these interests they use are associated with sensitive information directly linked to your social profile? In this talk, I will talk about the definition of sensitive data in terms of the General Data Protection Regulation in Europe (GDPR).[…] -
-
-
Seminar
-
SoSysec
Built on sand: on the security of Collaborative Machine Learning
Speaker : Dario Pasquini (EPFL)
This talk is about inaccurate assumptions, unrealistic trust models, and flawed methodologies affecting current collaborative machine learning techniques. In the presentation, we cover different security issues concerning both emerging approaches and well-established solutions in privacy-preserving collaborative machine learning. We start by discussing the inherent insecurity of Split Learning and[…] -
-
-
Seminar
-
SoSysec
Intriguing Properties of Adversarial ML Attacks in the Problem Space
Speaker : Fabio Pierazzi (King’s College London)
Recent research efforts on adversarial ML have investigated problem-space attacks, focusing on the generation of real evasive objects in domains where, unlike images, there is no clear inverse mapping to the feature space (e.g., software). However, the design, comparison, and real-world implications of problem-space attacks remain underexplored. In this talk, I will present two major contributions[…] -
-
-
Seminar
-
SoSysec
DroidGuard: A Deep Dive into SafetyNet
Speaker : Romain Thomas (Quarkslab)
SafetyNet is the Android component developed by Google to verify the devices’ integrity. These checks are used by the developers to prevent running applications on devices that would not meet security requirements but it is also used by Google to prevent bots, fraud and abuse.In 2017, Collin Mulliner & John Kozyrakis made one of the first public presentations about SafetyNet and a glimpse into the[…] -
-
-
Seminar
-
SoSysec
Ransomware Detection Using Markov Chain Models Over File Headers
Speaker : David Lubicz (DGA-MI)
In this paper, a new approach for the detection of ransomware based on the runtime analysis of their behaviour is presented. The main idea is to get samples by using a mini-filter to intercept write requests, then decide if a sample corresponds to a benign or a malicious write request. To do so, in a learning phase, statistical models of structured file headers are built using Markov chains. Then[…] -
-
-
Seminar
-
SoSysec
Reasoning over leaks of information for Access Control of Databases
Speaker : Pierre Bourhis (CNRS, CRISTAL)
Controlling the access of data in Database management systems is a classical problem and it has been solved through different mechanisms. One of the most common mechanism implemented in most Database management systems is the mechanism of views, i.e defining the accessible data of a user as the result of a query. This mechanism is also used in principle in other systems such as in social networks.[…] -