O-Cloud Security: A Comprehensive Survey of Threats, Mitigation Strategies, and Future Directions

<p dir="ltr">The Open Radio Access Network (O-RAN) represents a groundbreaking evolution in next-generation (NGN) communication systems, offering an open, flexible, and vendor-agnostic approach that disaggregates traditional network functions. Central to this ecosystem is the O-Cloud...

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محفوظ في:
التفاصيل البيبلوغرافية
المؤلف الرئيسي: Muhammad J. Shehab (16905174) (author)
مؤلفون آخرون: Youssef Aly (22929010) (author), Ahmed Badawy (6992093) (author), Amr Mohamed (3508121) (author), Mahmoud Barhamgi (12618205) (author), Saeed Salem (22282705) (author)
منشور في: 2025
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author Muhammad J. Shehab (16905174)
author2 Youssef Aly (22929010)
Ahmed Badawy (6992093)
Amr Mohamed (3508121)
Mahmoud Barhamgi (12618205)
Saeed Salem (22282705)
author2_role author
author
author
author
author
author_facet Muhammad J. Shehab (16905174)
Youssef Aly (22929010)
Ahmed Badawy (6992093)
Amr Mohamed (3508121)
Mahmoud Barhamgi (12618205)
Saeed Salem (22282705)
author_role author
dc.creator.none.fl_str_mv Muhammad J. Shehab (16905174)
Youssef Aly (22929010)
Ahmed Badawy (6992093)
Amr Mohamed (3508121)
Mahmoud Barhamgi (12618205)
Saeed Salem (22282705)
dc.date.none.fl_str_mv 2025-09-09T06:00:00Z
dc.identifier.none.fl_str_mv 10.1109/ojcoms.2025.3600528
dc.relation.none.fl_str_mv https://figshare.com/articles/journal_contribution/O-Cloud_Security_A_Comprehensive_Survey_of_Threats_Mitigation_Strategies_and_Future_Directions/30971767
dc.rights.none.fl_str_mv CC BY 4.0
info:eu-repo/semantics/openAccess
dc.subject.none.fl_str_mv Engineering
Communications engineering
Information and computing sciences
Cybersecurity and privacy
Machine learning
O-RAN
O-Cloud
cybersecurity
next-generation networks
machine learning
secure generative AI
LLMs
digital twin
blockchain
zero-trust architecture
proof of retrievability
secure caching
Surveys
Prevention and mitigation
Computer architecture
Reviews
Cloud computing
Telecommunications
5G mobile communication
Technological innovation
dc.title.none.fl_str_mv O-Cloud Security: A Comprehensive Survey of Threats, Mitigation Strategies, and Future Directions
dc.type.none.fl_str_mv Text
Journal contribution
info:eu-repo/semantics/publishedVersion
text
contribution to journal
description <p dir="ltr">The Open Radio Access Network (O-RAN) represents a groundbreaking evolution in next-generation (NGN) communication systems, offering an open, flexible, and vendor-agnostic approach that disaggregates traditional network functions. Central to this ecosystem is the O-Cloud, which serves as the foundation for hosting and managing virtualized and containerized network functions in a cloud-native environment. However, while the O-Cloud offers significant advantages in scalability and efficiency, it also introduces unique security challenges, integrating a whole paradigm of telecom and cloud computing. This survey provides a comprehensive analysis of security measures tailored to the unique needs of O-Cloud environments. Further, we thoroughly detail the existing threats, highlight the vulnerabilities, and discuss the emerging security mitigation techniques. We analyze both foundational and emerging security solutions, detailing current threats and vulnerabilities while presenting innovative mitigation techniques. In particular, we will inspect the impact of advanced technologies such as zero-trust architecture (ZTA), Secure Access Service Edge (SASE), proof of retrievability (PoR), machine learning (ML), secure generative AI, secure caching, blockchain, digital twin (DT), and Quantum security technologies in strengthening the O-Cloud security. Through this analysis, we aim to provide an in-depth survey aimed at strengthening O-Cloud-based telecom networks against cybersecurity threats and ensuring data and services’ integrity. Our insights and forward-looking recommendations for O-Cloud security are presented to develop a resilient and secure O-Cloud environment, offering directional guidance to practitioners and researchers and a strategic roadmap for the stakeholders to build a secure and sustainable O-Cloud environment.</p><h2 dir="ltr">Other Information</h2><p dir="ltr">Published in: IEEE Open Journal of the Communications Society<br>License: <a href="https://creativecommons.org/licenses/by/4.0/deed.en" target="_blank">https://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1109/ojcoms.2025.3600528" target="_blank">https://dx.doi.org/10.1109/ojcoms.2025.3600528</a></p>
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oai_identifier_str oai:figshare.com:article/30971767
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spelling O-Cloud Security: A Comprehensive Survey of Threats, Mitigation Strategies, and Future DirectionsMuhammad J. Shehab (16905174)Youssef Aly (22929010)Ahmed Badawy (6992093)Amr Mohamed (3508121)Mahmoud Barhamgi (12618205)Saeed Salem (22282705)EngineeringCommunications engineeringInformation and computing sciencesCybersecurity and privacyMachine learningO-RANO-Cloudcybersecuritynext-generation networksmachine learningsecure generative AILLMsdigital twinblockchainzero-trust architectureproof of retrievabilitysecure cachingSurveysPrevention and mitigationComputer architectureReviewsCloud computingTelecommunications5G mobile communicationTechnological innovation<p dir="ltr">The Open Radio Access Network (O-RAN) represents a groundbreaking evolution in next-generation (NGN) communication systems, offering an open, flexible, and vendor-agnostic approach that disaggregates traditional network functions. Central to this ecosystem is the O-Cloud, which serves as the foundation for hosting and managing virtualized and containerized network functions in a cloud-native environment. However, while the O-Cloud offers significant advantages in scalability and efficiency, it also introduces unique security challenges, integrating a whole paradigm of telecom and cloud computing. This survey provides a comprehensive analysis of security measures tailored to the unique needs of O-Cloud environments. Further, we thoroughly detail the existing threats, highlight the vulnerabilities, and discuss the emerging security mitigation techniques. We analyze both foundational and emerging security solutions, detailing current threats and vulnerabilities while presenting innovative mitigation techniques. In particular, we will inspect the impact of advanced technologies such as zero-trust architecture (ZTA), Secure Access Service Edge (SASE), proof of retrievability (PoR), machine learning (ML), secure generative AI, secure caching, blockchain, digital twin (DT), and Quantum security technologies in strengthening the O-Cloud security. Through this analysis, we aim to provide an in-depth survey aimed at strengthening O-Cloud-based telecom networks against cybersecurity threats and ensuring data and services’ integrity. Our insights and forward-looking recommendations for O-Cloud security are presented to develop a resilient and secure O-Cloud environment, offering directional guidance to practitioners and researchers and a strategic roadmap for the stakeholders to build a secure and sustainable O-Cloud environment.</p><h2 dir="ltr">Other Information</h2><p dir="ltr">Published in: IEEE Open Journal of the Communications Society<br>License: <a href="https://creativecommons.org/licenses/by/4.0/deed.en" target="_blank">https://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1109/ojcoms.2025.3600528" target="_blank">https://dx.doi.org/10.1109/ojcoms.2025.3600528</a></p>2025-09-09T06:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1109/ojcoms.2025.3600528https://figshare.com/articles/journal_contribution/O-Cloud_Security_A_Comprehensive_Survey_of_Threats_Mitigation_Strategies_and_Future_Directions/30971767CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/309717672025-09-09T06:00:00Z
spellingShingle O-Cloud Security: A Comprehensive Survey of Threats, Mitigation Strategies, and Future Directions
Muhammad J. Shehab (16905174)
Engineering
Communications engineering
Information and computing sciences
Cybersecurity and privacy
Machine learning
O-RAN
O-Cloud
cybersecurity
next-generation networks
machine learning
secure generative AI
LLMs
digital twin
blockchain
zero-trust architecture
proof of retrievability
secure caching
Surveys
Prevention and mitigation
Computer architecture
Reviews
Cloud computing
Telecommunications
5G mobile communication
Technological innovation
status_str publishedVersion
title O-Cloud Security: A Comprehensive Survey of Threats, Mitigation Strategies, and Future Directions
title_full O-Cloud Security: A Comprehensive Survey of Threats, Mitigation Strategies, and Future Directions
title_fullStr O-Cloud Security: A Comprehensive Survey of Threats, Mitigation Strategies, and Future Directions
title_full_unstemmed O-Cloud Security: A Comprehensive Survey of Threats, Mitigation Strategies, and Future Directions
title_short O-Cloud Security: A Comprehensive Survey of Threats, Mitigation Strategies, and Future Directions
title_sort O-Cloud Security: A Comprehensive Survey of Threats, Mitigation Strategies, and Future Directions
topic Engineering
Communications engineering
Information and computing sciences
Cybersecurity and privacy
Machine learning
O-RAN
O-Cloud
cybersecurity
next-generation networks
machine learning
secure generative AI
LLMs
digital twin
blockchain
zero-trust architecture
proof of retrievability
secure caching
Surveys
Prevention and mitigation
Computer architecture
Reviews
Cloud computing
Telecommunications
5G mobile communication
Technological innovation