Concepts and technologies are disclosed herein for managing access based on activities of entities. A computing device can collect data that comprises an image. The computing device can identify an entity that is located in a range of a sensor. The computing device can determine an identity that is associated with the entity and an activity associated with the entity. The computing device can obtain a trust indicator associated with the entity. The computing device can determine, based on the trust indicator, if the activity should be allowed. If the computing device determines that the activity should be allowed, the computing device can initiate allowing of the activity. If the computing device determines that the activity should not be allowed, the computing device can initiate blocking of the activity.