collaborators

5 papers

cs.CR2025

Log2Sig: Frequency-Aware Insider Threat Detection via Multivariate Behavioral Signal Decomposition

Kaichuan Kong, Dongjie Liu, Xiaobo Jin +2

Insider threat detection presents a significant challenge due to the deceptive nature of malicious behaviors, which often resemble legitimate user operations. However, existing app…

cs.CR2025

MambaITD: An Efficient Cross-Modal Mamba Network for Insider Threat Detection

Kaichuan Kong, Dongjie Liu, Xiaobo Jin +3

Enterprises are facing increasing risks of insider threats, while existing detection methods are unable to effectively address these challenges due to reasons such as insufficient…

cs.CR2025

DMFI: A Dual-Modality Log Analysis Framework for Insider Threat Detection with LoRA-Tuned Language Models

Kaichuan Kong, Dongjie Liu, Xiaobo Jin +3

Insider threat detection (ITD) poses a persistent and high-impact challenge in cybersecurity due to the subtle, long-term, and context-dependent nature of malicious insider behavio…

cs.CV2024

Twin Trigger Generative Networks for Backdoor Attacks against Object Detection

Zhiying Li, Zhi Liu, Guanggang Geng +4

Object detectors, which are widely used in real-world applications, are vulnerable to backdoor attacks. This vulnerability arises because many users rely on datasets or pre-trained…

cs.CR2024

Forging the Unforgeable: On the Feasibility of Counterfeit Watermarks in Backdoor-Based Dataset Ownership Verification

Zhiying Li, Zhi Liu, Dongjie Liu +6

Backdoor watermarking has emerged as the predominant approach for protecting public datasets, enabling dataset ownership verification (DOV) through embedded triggers that induce pr…