In April and May, the Trustworthy Data Working Group (https://www.trustedci.org/trustworthy-data) conducted a survey of the scientific community about data security concerns and practices. 111 participants completed the survey from a wide range of positions and roles within their organizations and projects. The working group published an analysis of the survey results in June (https://doi.org/10.5281/zenodo.3906865). Over the past three months, the working group drafted guidance, shaped by the results of the survey, on trustworthy data for science projects and cyberinfrastructure developers (https://doi.org/10.5281/zenodo.4056241). This guidance addresses attributes of trustworthiness, barriers to trustworthiness, tools and technologies for achieving trustworthiness, and methods for communicating trustworthiness. In this webinar, Jim will present the working group's survey analysis and draft guidance, discuss relevance to science gateway scenarios, and invite input from the science gateway community on the topic of trustworthy data. The working group will be revising its guidance in November, incorporating input received from this webinar and other community outreach events, to be included in the working group's final report in December.