Dear community members, We are pleased to invite you to *submit your work to MisD-2026 workshop*, taking place on May 26, 2026, at the 20th International AAAI Conference on Web and Social Media (ICWSM 2026) in Los Angeles, USA. 🎺 *Keynote Speaker* 🔊🔊🔊 We are honoured to announce that Preslav Nakov will join MisD-2026 as our invited keynote speaker. Professor Nakov is the Department Chair for NLP at the Mohamed bin Zayed University of Artificial Intelligence. He is part of the core team that developed Jais, the world's best open-source Arabic-centric LLM, as well as part of the LLM360 team at MBZUAI. He is one of the leading experts on fake news, disinformation, fact checking, propaganda, and media bias detection and has published tens of research papers on solutions and stop-gaps for the ever-growing online social media infodemic. Please find more details in our workshop website: https://sites.google.com/view/misd-2026/ 📬📬📬 *Submission system is now open*: https://openreview.net/group?id=cwsm.org/MisD/2026/Conference We welcome long papers, short papers, abstracts, and visionary/idea papers related to misinformation, fake news, rumours, and misleading narratives across disciplines. *Topics include (but are not limited to):*• LLMs for misinformation detection • Multimodal / multilingual detection • Cross-domain misinformation (health, politics, finance, etc.) • Social and psychological dynamics of misinformation • Hallucination mitigation in LLMs • Fairness, bias, policy, and ethics 📊* Shared Task*: The Reference-Free Counterfactual (RFC) benchmark has begun. You can obtain the training dataset through registration at: https://sites.google.com/view/icwsm-2026-fmd/ *⏲ Important Dates*Submission Deadline: March 31, 2026 Notification: April 15, 2026 Workshop: May 26, 2026 *🔗 Official website:*https://sites.google.com/view/misd-2026/ We look forward to your contributions and to seeing you in Los Angeles! Best regards, Calvin Yixiang Cheng, On behalf of the Organizers of MisD 2026