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Author

Ashraf S. Mahmoud

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Open access Sep 2026

A moving-target-defense architecture for protecting against ransomware and data exfiltration

Exfiltration and ransomware attacks have increased dramatically in the Middle East, particularly targeting major institutions in Saudi Arabia and Qatar. These sophisticated attacks are executed by info-seekers who meticulously gather intelligence on potential targets before launching their attacks. These attacks of...

Mohammed A. Makarem, Ashraf S. Mahmoud, Abdallah Moubayed et al. · 0 citations
Open access 2026

Quantization-Aware Learning for Secure and Resilient UAV-STAR-RIS-Enabled 6G Systems

Investigation of phase quantization in a UAV-mounted STAR-RIS-assisted downlink non-orthogonal multiple access (NOMA) network to maximize secrecy rate demonstrates that QAT enables efficient low-bit STAR-RIS operation, reducing hardware complexity and signaling overhead while preserving secrecy performance, thereby enh...

Yaser Almasri, Khaled M. Rabie, Mahmoud M. Salim et al. · 1 citation

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