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Given sensor readings over time from a power grid, how can we accurately detect when an anomaly occurs? A key part of achieving this goal is to use the network of power grid sensors to quickly detect, in real-time, when any unusual events,…

Machine Learning · Computer Science 2021-12-06 Shimiao Li , Amritanshu Pandey , Bryan Hooi , Christos Faloutsos , Larry Pileggi

We propose a novel and efficient method, that we shall call TopRank in the following paper, for detecting change-points in high-dimensional data. This issue is of growing concern to the network security community since network anomalies…

Applications · Statistics 2009-08-18 Céline Lévy-Leduc , François Roueff

The complexity and ubiquity of modern computing systems is a fertile ground for anomalies, including security and privacy breaches. In this paper, we propose a new methodology that addresses the practical challenges to implement anomaly…

Cryptography and Security · Computer Science 2020-06-17 Charles F. Gonçalves , Daniel S. Menasché , Alberto Avritzer , Nuno Antunes , Marco Vieira

Most of today's security solutions, such as security information and event management (SIEM) and signature based IDS, require the operator to evaluate potential attack vectors and update detection signatures and rules in a timely manner.…

Cryptography and Security · Computer Science 2021-01-19 Markus Wurzenberger , Florian Skopik , Roman Fiedler , Wolfgang Kastner

Exfiltration of data via email is a serious cybersecurity threat for many organizations. Detecting data exfiltration (anomaly) patterns typically requires labeling, most often done by a human annotator, to reduce the high number of false…

Machine Learning · Computer Science 2023-07-19 Jaturong Kongmanee , Mark Chignell , Khilan Jerath , Abhay Raman

Although there have been many solutions applied, the safety challenges related to the password security mechanism are not reduced. The reason for this is that while the means and tools to support password attacks are becoming more and more…

Cryptography and Security · Computer Science 2019-12-05 Nguyen Hong Son , Ha Thanh Dung

Anomaly-based Intrusion Detection System (IDS) has been a hot research topic because of its ability to detect new threats rather than only memorized signatures threats of signature-based IDS. Especially after the availability of advanced…

Artificial Intelligence · Computer Science 2022-09-29 Khloud Al Jallad , Mohamad Aljnidi , Mohammad Said Desouki

We introduce a novel approach to user authentication called Motion ID. The method employs motion sensing provided by inertial measurement units (IMUs), using it to verify the persons identity via short time series of IMU data captured by…

Generating random bit streams is required in various applications, most notably cyber-security. Ensuring high-quality and robust randomness is crucial to mitigate risks associated with predictability and system compromise. True random…

Cryptography and Security · Computer Science 2026-01-27 Cesare Gerolimetto Fabrello , Valeria Rossi , Kamil Witek , Alberto Trombetta , Massimo Caccia

This work proposes a data driven learning model for the synthesis of keystroke biometric data. The proposed method is compared with two statistical approaches based on Universal and User-dependent models. These approaches are validated on…

In this paper, we investigate a potential security vulnerability associated with wrist wearable devices. Hardware components on common wearable devices include an accelerometer and gyroscope, among other sensors. We demonstrate that an…

Cryptography and Security · Computer Science 2020-05-01 Lambert T. Leong , Sean Wiere

In this paper, we propose a privacy-enhancing technique leveraging an inherent property of automatic pedestrian detection algorithms, namely, that the training of deep neural network (DNN) based methods is generally performed using curated…

Computer Vision and Pattern Recognition · Computer Science 2025-01-28 Jacob Shams , Ben Nassi , Satoru Koda , Asaf Shabtai , Yuval Elovici

The research literature on cybersecurity incident detection & response is very rich in automatic detection methodologies, in particular those based on the anomaly detection paradigm. However, very little attention has been devoted to the…

Networking and Internet Architecture · Computer Science 2019-09-16 José Camacho , José Manuel García-Giménez , Noemí Marta Fuentes-García , Gabriel Maciá-Fernández

The rapid expansion of the industrial Internet of things (IIoT) has introduced new challenges in securing critical infrastructures against sophisticated cyberthreats. This study presents the development and evaluation of an advanced…

Cryptography and Security · Computer Science 2025-03-25 Afrah Gueriani , Hamza Kheddar , Ahmed Cherif Mazari

Intrusion detection systems (IDS) are essential for protecting computer systems and networks against a wide range of cyber threats that continue to evolve over time. IDS are commonly categorized into two main types, each with its own…

Cryptography and Security · Computer Science 2026-01-21 Messaouda Boutassetta , Amina Makhlouf , Newfel Messaoudi , Abdelmadjid Benmachiche , Ines Boutabia

Application of deep learning to enhance the accuracy of intrusion detection in modern computer networks were studied in this paper. The identification of attacks in computer networks is divided in to two categories of intrusion detection…

Cryptography and Security · Computer Science 2020-12-16 Jafar Majidpour , Hiwa Hasanzadeh

Advanced Persistent Threats (APTs) pose a significant challenge in cybersecurity due to their stealthy and long-term nature. Modern supervised learning methods require extensive labeled data, which is often scarce in real-world…

Machine Learning · Computer Science 2025-11-26 Sidahmed Benabderrahmane , James Cheney , Talal Rahwan

Advanced Persistent Threats (APTs) pose a severe challenge to cyber defense due to their stealthy behavior and the extreme class imbalance inherent in detection datasets. To address these issues, we propose a novel active learning-based…

Machine Learning · Computer Science 2025-08-27 Sidahmed Benabderrahmane , Talal Rahwan

Modern computer threats are far more complicated than those seen in the past. They are constantly evolving, altering their appearance, perpetually changing disguise. Under such circumstances, detecting known threats, a fortiori zero-day…

Cryptography and Security · Computer Science 2015-08-18 Shachar Siboni , Asaf Cohen

Password security plays a crucial role in cybersecurity, yet traditional password strength meters, which rely on static rules like character-type requirements, often fail. Such methods are easily bypassed by common password patterns (e.g.,…

Cryptography and Security · Computer Science 2025-11-14 Muhammed El Mustaqeem Mazelan , Noor Hazlina Abdul , Nouar AlDahoul