A US Court of Appeals has ruled that companies can legally update their Terms of Service (TOS) via email, and users' continued use of the service constitutes consent to those changes. This decision significantly impacts how digital platforms manage user agreements, potentially allowing for more frequent or substantial modifications without explicit re-signing. The ruling underscores the evolving legal interpretation of implied consent in the digital age, where passive acceptance through continued usage is now recognized as binding. US Court of Appeals affirmed that sending updated TOS directly to a user's registered email address fulfills the notice requirement, and email becomes a valid method for delivering these changes.

This sets a precedent that could influence similar cases nationwide and affect how developers structure user consent mechanisms within their applications.