Rethinking Secure Semantic Communications in the Age of Generative and Agentic AI: Threats and Opportunities
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| Format: | Preprint |
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2026
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| author | Tang, Shunpu Jia, Yuanyuan Yang, Zijiu Yang, Qianqian Zhang, Ruichen Du, Jun Park, Jihong Shi, Zhiguo Chen, Jiming |
| author_facet | Tang, Shunpu Jia, Yuanyuan Yang, Zijiu Yang, Qianqian Zhang, Ruichen Du, Jun Park, Jihong Shi, Zhiguo Chen, Jiming |
| contents | Semantic communication (SemCom) improves communication efficiency by transmitting task-relevant information instead of raw bits and is expected to be a key technology for 6G networks. Recent advances in generative AI (GenAI) further enhance SemCom by enabling robust semantic encoding and decoding under limited channel conditions. However, these efficiency gains also introduce new security and privacy vulnerabilities. Due to the broadcast nature of wireless channels, eavesdroppers can also use powerful GenAI-based semantic decoders to recover private information from intercepted signals. Moreover, rapid advances in agentic AI enable eavesdroppers to perform long-term and adaptive inference through the integration of memory, external knowledge, and reasoning capabilities. This allows eavesdroppers to further infer user private behavior and intent beyond the transmitted content. Motivated by these emerging challenges, this paper comprehensively rethinks the security and privacy of SemCom systems in the age of generative and agentic AI. We first present a systematic taxonomy of eavesdropping threat models in SemCom systems. Then, we provide insights into how GenAI and agentic AI can enhance eavesdropping threats. Meanwhile, we also highlight potential opportunities for leveraging GenAI and agentic AI to design privacy-preserving SemCom systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_01791 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Rethinking Secure Semantic Communications in the Age of Generative and Agentic AI: Threats and Opportunities Tang, Shunpu Jia, Yuanyuan Yang, Zijiu Yang, Qianqian Zhang, Ruichen Du, Jun Park, Jihong Shi, Zhiguo Chen, Jiming Signal Processing Information Theory Networking and Internet Architecture Semantic communication (SemCom) improves communication efficiency by transmitting task-relevant information instead of raw bits and is expected to be a key technology for 6G networks. Recent advances in generative AI (GenAI) further enhance SemCom by enabling robust semantic encoding and decoding under limited channel conditions. However, these efficiency gains also introduce new security and privacy vulnerabilities. Due to the broadcast nature of wireless channels, eavesdroppers can also use powerful GenAI-based semantic decoders to recover private information from intercepted signals. Moreover, rapid advances in agentic AI enable eavesdroppers to perform long-term and adaptive inference through the integration of memory, external knowledge, and reasoning capabilities. This allows eavesdroppers to further infer user private behavior and intent beyond the transmitted content. Motivated by these emerging challenges, this paper comprehensively rethinks the security and privacy of SemCom systems in the age of generative and agentic AI. We first present a systematic taxonomy of eavesdropping threat models in SemCom systems. Then, we provide insights into how GenAI and agentic AI can enhance eavesdropping threats. Meanwhile, we also highlight potential opportunities for leveraging GenAI and agentic AI to design privacy-preserving SemCom systems. |
| title | Rethinking Secure Semantic Communications in the Age of Generative and Agentic AI: Threats and Opportunities |
| topic | Signal Processing Information Theory Networking and Internet Architecture |
| url | https://arxiv.org/abs/2601.01791 |