The Internet of Things promises to connect different kinds of devices, allow for new ways of interaction, and make our lives easier. But, we need to be able to trust that the Internet of Things will protect our security and privacy. It should also be universally designed so that anyone can use it regardless of ability. We applied a user-centered approach to looking at user-centered trust in the Internet of Things, including universal design issues. We conducted an evaluation with 85 participants of a security assistant that can present security and privacy information to users. The evaluation included participants who were either elderly, had vision impairment, or had dsylexia. Participants found the information useful, but there was confusion about how the UI worked. We present an updated security assistant and future areas for research in trust and the Internet of Things.