Patent ID: 8411297

Claim:
An image forming system, comprising: an access control part for determining whether to allow or prohibit access to a security image in which a password for access control is embedded; a storage part for storing a check image, which is an image for checking said security image, and sharing member information which is information on sharing members who are users allowed to share said security image, being associated with each other; an extraction part for extracting said check image which is determined to have coidentity with said security image, out of one or more images including said check image stored in said storage part, on the basis of a determination result on coidentity between said security image and each of said one or more images; and an acquisition part for acquiring said sharing member information associated with said check image, wherein said access control part allows a login user who logs in to said image forming system to have access to said security image without requiring said login user to enter said password on condition that said login user is determined to be one of said sharing members on the basis of said sharing member information.