Hi! I’m Sifat Muhammad Abdullah, a 4th year Ph.D. student at the Department of Computer Science, Virginia Tech. I am advised by Dr. Bimal Viswanath. My research interests center around the security of VLMs and LLMs. Particularly, I focus on analyzing and enhancing the robustness of Multimodal and Large Language models against adversarial attacks, and make them safer against real-world threats. I have received my Bachelor’s degree in Computer Science from BUET in April, 2019.

Please contact me with any questions (email on the left).

Publications

An Analysis of Recent Advances in Deepfake Image Detection in an Evolving Threat Landscape
Sifat Muhammad Abdullah, Aravind Cheruvu, Shravya Kanchi, Taejoong Chung, Peng Gao, Murtuza Jadliwala, Bimal Viswanath.
IEEE S&P (Oakland)
San Francisco, CA, May 2024.
PDF Code and Datasets Video

A First Look at Toxicity Injection Attacks on Open-domain Chatbots
Aravind Cheruvu, Connor Weeks, Sifat Muhammad Abdullah, Shravya Kanchi, Danfeng Yao, Bimal Viswanath.
ACSAC
Austin, Texas, Dec 2023.
PDF Code and Datasets

Deepfake Text Detection: Limitations and Opportunities
Jiameng Pu, Zain Sarwar, Sifat Muhammad Abdullah, Abdullah Rehman, Yoonjin Kim, Parantapa Bhattacharya, Mobin Javed, Bimal Viswanath.
IEEE S&P (Oakland)
San Francisco, CA, May 2023.
PDF Code and Datasets Video

CHAPAO: Likelihood and hierarchical reference-based representation of biomolecular sequences and applications to compressing multiple sequence alignments
Md Ashiqur Rahman, Abdullah Aman Tutul, Sifat Muhammad Abdullah, Md Shamsuzzoha Bayzid.
PLOS ONE Journal, 2022.
PDF Code and Datasets

A Web-Based System for Efficient Contact Tracing Query in a Large Spatio-Temporal Database
Shadman Saqib Eusuf, Kazi Ashik Islam, Mohammed Eunus Ali, Sifat Muhammad Abdullah, Abdus Salam Azad.
ACM SIGSPATIAL
Seattle, WA, Nov 2020.
PDF


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