Patent attributes
Aspects of the technology described herein provide for controlled access to a secure computing resource. A first device may receive a child token from a second device having a parent token. The child token may grant the first device access to a subset of data accessible to the second device. Based on a degree of physical proximity between the first device and a third device associated with a user satisfying a threshold proximity, an indication of a user identifier for the user may be received from the third device. A request for access to a secure computing resource associated with the user may be sent to the second device. The request may include the indication of the user identifier and an indication of the secure computing resource. Access to the secure computing resource may be granted based on the child token and the indication of the identifier.