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Multimodal agents increasingly choose tool calls from screenshots, documents, and webpages, where a false perceptual claim can turn hallucination from an answer-quality error into an authorization failure. We formalize this failure mode as…

Artificial Intelligence · Computer Science 2026-05-22 Guijia Zhang , Hao Zheng , Harry Yang

ALOHA-type protocols became a popular solution for distributed and uncoordinated multiple random access in wireless networks. However, such distributed operation of the Medium Access Control (MAC) layer leads to sub-optimal utilization of…

Information Theory · Computer Science 2016-06-08 G. Interdonato , S. Pfletschinger , F. Vazquez-Gallego , J. Alonso-Zarate , G. Araniti

The rapid evolution of Artificial Intelligence (AI)-based Virtual Assistants (VAs) e.g., Google Gemini, ChatGPT, Microsoft Copilot, and High-Flyer Deepseek has turned them into convenient interfaces for managing emerging technologies such…

Artificial Intelligence · Computer Science 2025-05-13 Jennifer Mondragon , Carlos Rubio-Medrano , Gael Cruz , Dvijesh Shastri

Considering the widespread use of effective capacity in cross-layer design and the extensive existence of renewal service processes in communication networks, this paper thoroughly investigates the effective capacity for renewal processes.…

Information Theory · Computer Science 2018-12-18 Zheng Shi , Theodoros Tsiftsis , Weiqiang Tan , Guanghua Yang , Shaodan Ma , Mohamed-Slim Alouini

IAM misconfigurations are a major cause of privilege escalation (PE) attacks in the cloud, leading to data breaches and major financial losses. Existing PE detectors have two main limits: they cover only some PE types, so many attacks are…

Cryptography and Security · Computer Science 2026-04-01 Yang Hu , Wenxi Wang

The analysis of hidden channels of information leakage with respect to role-based access control includes monitoring of excessive permissions among users. It is not always possible to completely eliminate redundancy. The problem of ranking…

Cryptography and Security · Computer Science 2019-01-01 S. V. Belim , N. F. Bogachenko , A. N. Kabanov

Existing safety evaluation methods for large language models (LLMs) suffer from inherent limitations, including evaluator bias and detection failures arising from model homogeneity, which collectively undermine the robustness of risk…

Artificial Intelligence · Computer Science 2025-10-24 Xiuyuan Chen , Jian Zhao , Yuchen Yuan , Tianle Zhang , Huilin Zhou , Zheng Zhu , Ping Hu , Linghe Kong , Chi Zhang , Weiran Huang , Xuelong Li

We introduce DeepSearchQA, a 900-prompt benchmark for evaluating agents on difficult multi-step information-seeking tasks across 17 different fields. Unlike traditional benchmarks that target single answer retrieval or broad-spectrum…

Agent systems often decompose a task across multiple roles, but these roles are typically specified by prompts rather than enforced by access controls. Without enforcement, a team pass rate can mask whether agents actually coordinated or…

Current approaches of enforcing FGAC in Database Management Systems (DBMS) do not scale in scenarios when the number of policies are in the order of thousands. This paper identifies such a use case in the context of emerging smart spaces…

Databases · Computer Science 2020-06-19 Primal Pappachan , Roberto Yus , Sharad Mehrotra , Johann-Christoph Freytag

The inability to relocate objects in unmanaged languages brings with it a menagerie of problems. Perhaps the most impactful is memory fragmentation, which has long plagued applications such as databases and web servers. These issues either…

Programming Languages · Computer Science 2024-05-02 Nick Wanninger , Tommy McMichen , Simone Campanoni , Peter Dinda

Code-capable large language model (LLM) agents are increasingly embedded into software engineering workflows where they can read, write, and execute code, raising the stakes of safety-bypass ("jailbreak") attacks beyond text-only settings.…

Cryptography and Security · Computer Science 2025-10-03 Shoumik Saha , Jifan Chen , Sam Mayers , Sanjay Krishna Gouda , Zijian Wang , Varun Kumar

Smart contract transactions are increasingly interleaved by cross-contract calls. While many tools have been developed to identify a common set of vulnerabilities, the cross-contract vulnerability is overlooked by existing tools.…

Cryptography and Security · Computer Science 2022-07-01 Yinxing Xue , Jiaming Ye , Wei Zhang , Jun Sun , Lei Ma , Haijun Wang , Jianjun Zhao

APIs often transmit far more data to client applications than they need, and in the context of web applications, often do so over public channels. This issue, termed Excessive Data Exposure (EDE), was OWASP's third most significant API…

Cryptography and Security · Computer Science 2024-05-28 Lianglu Pan , Shaanan Cohney , Toby Murray , Van-Thuan Pham

Binary-only fuzzing often struggles with achieving thorough code coverage and uncovering hidden vulnerabilities due to limited insight into a program's internal dataflows. Traditional grey-box fuzzers guide test case generation primarily…

Software Engineering · Computer Science 2025-09-08 Kai Feng , Jeremy Singer , Angelos K Marnerides

LLM-powered agents can silently delete documents, leak credentials, or transfer funds on a routine user request, not because the agent was attacked, but because the skill it invoked broke its own declared safety rules. We call these…

Cryptography and Security · Computer Science 2026-05-14 Ying Li , Hongbo Wen , Yanju Chen , Hanzhi Liu , Yuan Tian , Yu Feng

Administrative Role Based Access Control (ARBAC) models deal with how to manage user-role assignments (URA), permission-role assignments (PRA), and role-role assignments (RRA). A wide variety of approaches has been proposed in the…

Cryptography and Security · Computer Science 2017-07-04 Jiwan Ninglekhu , Ram Krishnan

By reducing optimization to a sequence of smaller subproblems, working set algorithms achieve fast convergence times for many machine learning problems. Despite such performance, working set implementations often resort to heuristics to…

Machine Learning · Statistics 2018-07-24 Tyler B. Johnson , Carlos Guestrin

We introduce WildAGTEval, a benchmark designed to evaluate large language model (LLM) agents' function-calling capabilities under realistic API complexity. Unlike prior work that assumes an idealized API system and disregards real-world…

Computation and Language · Computer Science 2026-01-05 Doyoung Kim , Zhiwei Ren , Jie Hao , Zhongkai Sun , Lichao Wang , Xiyao Ma , Zack Ye , Xu Han , Jun Yin , Heng Ji , Wei Shen , Xing Fan , Benjamin Yao , Chenlei Guo

Responsible Artificial Intelligence (AI) - the practice of developing, evaluating, and maintaining accurate AI systems that also exhibit essential properties such as robustness and explainability - represents a multifaceted challenge that…

Machine Learning · Computer Science 2022-01-19 Ryan Soklaski , Justin Goodwin , Olivia Brown , Michael Yee , Jason Matterer