Pamela J. Grace is a research associate professor of nursing and ethics at Boston College's Connell School of Nursing, Chestnut Hill, MA. Contact author: [email protected]. The author has disclosed no potential conflicts of interest, financial or otherwise. A podcast with the author is available at www.ajnonline.com.

Nurses are trusted to be truthful and to provide considered, substantiated information in a neutral way. Yet the COVID-19 crisis has highlighted how some nurses engage in misinformation on social media and in other venues. This article explores the reasons why people believe they are fully informed, including the possible influence of confirmation biases. It also describes the augmented ethical responsibilities of nurses to examine in depth what they think they know and understand and to account for cognitive biases. Strategies for nurse leaders, managers, and educators are provided to facilitate good practice and help ensure nurses are held accountable for their actions and social media postings.