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To address the challenging problem of detecting phishing webpages, researchers have developed numerous solutions, in particular those based on machine learning (ML) algorithms. Among these, brand-based phishing detection that uses models…

密码学与安全 · 计算机科学 2024-08-13 Jehyun Lee , Peiyuan Lim , Bryan Hooi , Dinil Mon Divakaran

Pre-trained language models (PTLMs) have achieved great success and remarkable performance over a wide range of natural language processing (NLP) tasks. However, there are also growing concerns regarding the potential security issues in the…

密码学与安全 · 计算机科学 2022-02-15 Shangwei Guo , Chunlong Xie , Jiwei Li , Lingjuan Lyu , Tianwei Zhang

The escalating landscape of cyber threats, characterized by the registration of thousands of new domains daily for large-scale Internet attacks such as spam, phishing, and drive-by downloads, underscores the imperative for innovative…

密码学与安全 · 计算机科学 2024-07-11 Furkan Çolhak , Mert İlhan Ecevit , Hasan Dağ , Reiner Creutzburg

URL+HTML feature fusion shows promise for robust malicious URL detection, since attacker artifacts persist in DOM structures. However, prior work suffers from four critical shortcomings: (1) incomplete URL modeling, failing to jointly…

密码学与安全 · 计算机科学 2025-06-25 Ye Tian , Zhang Yumin , Yifan Jia , Jianguo Sun , Yanbin Wang

In detecting malicious websites, a common approach is the use of blacklists which are not exhaustive in themselves and are unable to generalize to new malicious sites. Detecting newly encountered malicious websites automatically will help…

密码学与安全 · 计算机科学 2022-09-21 Adebayo Oshingbesan , Courage Ekoh , Chukwuemeka Okobi , Aime Munezero , Kagame Richard

We propose a novel task-agnostic in-domain pre-training method that sits between generic pre-training and fine-tuning. Our approach selectively masks in-domain keywords, i.e., words that provide a compact representation of the target…

计算与语言 · 计算机科学 2023-07-17 Shahriar Golchin , Mihai Surdeanu , Nazgol Tavabi , Ata Kiapour

In recent years, self-supervised learning has attracted widespread academic debate and addressed many of the key issues of computer vision. The present research focus is on how to construct a good agent task that allows for improved network…

计算机视觉与模式识别 · 计算机科学 2023-03-14 Zhijie Xiao , Zhicheng Dong , Hao Xiang

Pre-trained language models (PLM) have demonstrated their effectiveness for a broad range of information retrieval and natural language processing tasks. As the core part of PLM, multi-head self-attention is appealing for its ability to…

计算与语言 · 计算机科学 2022-04-07 Shanshan Wang , Zhumin Chen , Zhaochun Ren , Huasheng Liang , Qiang Yan , Pengjie Ren

Malicious traffic detection is a pivotal technology for network security to identify abnormal network traffic and detect network attacks. Large Language Models (LLMs) are trained on a vast corpus of text, have amassed remarkable…

网络与互联网体系结构 · 计算机科学 2025-06-24 Xinggong Zhang , Haotian Meng , Qingyang Li , Yunpeng Tan , Lei Zhang

Language models often pre-train on large unsupervised text corpora, then fine-tune on additional task-specific data. However, typical fine-tuning schemes do not prioritize the examples that they tune on. We show that, if you can prioritize…

计算与语言 · 计算机科学 2023-05-12 Ian Osband , Seyed Mohammad Asghari , Benjamin Van Roy , Nat McAleese , John Aslanides , Geoffrey Irving

The way we communicate and work has changed significantly with the rise of the Internet. While it has opened up new opportunities, it has also brought about an increase in cyber threats. One common and serious threat is phishing, where…

密码学与安全 · 计算机科学 2024-07-11 Furkan Çolhak , Mert İlhan Ecevit , Bilal Emir Uçar , Reiner Creutzburg , Hasan Dağ

With the rapid development and widespread use of advanced network systems, software vulnerabilities pose a significant threat to secure communications and networking. Learning-based vulnerability detection systems, particularly those…

密码学与安全 · 计算机科学 2024-10-04 Weiliang Qi , Jiahao Cao , Darsh Poddar , Sophia Li , Xinda Wang

The dynamic expansion of social media has led to an inundation of hateful memes on media platforms, accentuating the growing need for efficient identification and removal. Acknowledging the constraints of conventional multimodal hateful…

计算与语言 · 计算机科学 2025-03-06 Junxi Liu , Yanyan Feng , Jiehai Chen , Yun Xue , Fenghuan Li

High-risk industries like nuclear and aviation use real-time monitoring to detect dangerous system conditions. Similarly, Large Language Models (LLMs) need monitoring safeguards. We propose a real-time framework to predict harmful AI…

人工智能 · 计算机科学 2025-05-21 Maheep Chaudhary , Fazl Barez

Deep neural networks have been proven to be vulnerable to adversarial examples and various methods have been proposed to defend against adversarial attacks for natural language processing tasks. However, previous defense methods have…

机器学习 · 计算机科学 2024-03-01 Fangyuan Zhang , Huichi Zhou , Shuangjiao Li , Hongtao Wang

Large Language Models (LLMs) remain vulnerable to multi-turn jailbreak attacks. We introduce HarmNet, a modular framework comprising ThoughtNet, a hierarchical semantic network; a feedback-driven Simulator for iterative query refinement;…

密码学与安全 · 计算机科学 2025-10-22 Sidhant Narula , Javad Rafiei Asl , Mohammad Ghasemigol , Eduardo Blanco , Daniel Takabi

Existing multimodal UAV object detection methods often overlook the impact of semantic gaps between modalities, which makes it difficult to achieve accurate semantic and spatial alignments, limiting detection performance. To address this…

计算机视觉与模式识别 · 计算机科学 2025-03-11 Wentao Wu , Chenglong Li , Xiao Wang , Bin Luo , Qi Liu

Machine learning (ML) started to become widely deployed in cyber security settings for shortening the detection cycle of cyber attacks. To date, most ML-based systems are either proprietary or make specific choices of feature…

密码学与安全 · 计算机科学 2019-07-11 Talha Ongun , Timothy Sakharaov , Simona Boboila , Alina Oprea , Tina Eliassi-Rad

Content moderation is the process of screening and monitoring user-generated content online. It plays a crucial role in stopping content resulting from unacceptable behaviors such as hate speech, harassment, violence against specific…

计算与语言 · 计算机科学 2023-01-02 Álvaro Huertas-García , Alejandro Martín , Javier Huertas Tato , David Camacho

Malicious URLs persistently threaten the cybersecurity ecosystem, by either deceiving users into divulging private data or distributing harmful payloads to infiltrate host systems. Gaining timely insights into the current state of this…

密码学与安全 · 计算机科学 2025-06-03 Ye Tian , Yanqiu Yu , Jianguo Sun , Yanbin Wang