58 Pa. Code § 812a.1
The following words and terms, when used in this chapter, have the following meanings, unless the context clearly indicates otherwise:
Electronic identifier-A unique identifier, such as a username or account number, other than personal identifying information (for example, a Social Security number), used to identify a player.
Player session-A player session consists of all activities and communications performed by an authorized registered player and the interactive gaming system between the time the registered player logs in to the interactive gaming system and the time the registered player logs out or is logged out of the interactive gaming system.
Strong authentication-A method that is intrinsically stringent enough to ensure the security of the system it protects by withstanding any attacks it is likely to encounter by combining at least two mutually-independent factors so that the compromise of one method should not lead to the compromise of the second and includes one nonreusable element, which cannot easily be reproduced or stolen from the Internet, to verify the identity of a registered player.
58 Pa. Code § 812a.1