Hi! I’m Sifat Muhammad Abdullah, a 3rd 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 machine learning models. Particularly, I focus on uncovering the vulnerabilities of deepfake content detectors using foundation models and developing more robust and generalizable methods for their detection. 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).


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

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 Dataset 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 Dataset

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.
Seattle, WA, Nov 2020.

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