Synchronization of access tokens for session continuity across multiple devices

An access token is synchronized across multiple trusted devices when one of the trusted devices obtains an authorization grant from a resource owner, and uses the authorization grant to obtain the access token. The access token is synchronized with other trusted devices indicated in a trusted device list, by securely transmitting the access token to each of the trusted devices indicated in the trusted device list other than the first device. A second trusted device may then access the protected resource, using the access token originally obtained by the first device, without having to request the authorization grant from the resource owner to obtain a new access token.