Abstract: Access of a user to a protected resource during a session is controlled by issuing an authentication information request and receiving authentication information from the user responsive to the authentication information request. The user is authenticated based upon verification of the received authentication information. One or more of the issuing, receiving and authenticating steps are repeated during the session to re-authenticate the user. At least a portion of the authentication information that is used during the re-authentication is different from a corresponding portion of the authentication information that was used during the initial authentication. A secure channel is optionally established between the user and the protected resource responsive to the initial verification. The secure channel can optionally be re-established with the re-authentication using the different portion of the authentication information.

Abstract: A method and system for use in indicating errors in connection with devices, wherein at least one of the devices comprises a display is disclosed. An error indicator suitable for indicating an error in connection with the device is stored. The error indicator is mapped to a potential error in connection with the device. An error is detected in connection with the device. The error in connection with the device is determined in response to detecting the error. Based on determining the error, the error indicator is displayed on the display for enabling determination of the error in connection with the device.

Abstract: A technique provides security to an electronic device. The technique involves disposing a microprocessor between a printed circuit board and a circuit element to restrict physical access to the microprocessor, the microprocessor having (i) a bottom which faces the printed circuit board in a first direction and (ii) a top which faces the circuit element in a second direction which is opposite the first direction. The technique further involves delivering power to the microprocessor from a power source while the microprocessor is disposed between the printed circuit board and the circuit element, the microprocessor performing electronic operations in response to the power delivered from the power source. The technique further involves electronically altering or preventing the microprocessor from further performing the electronic operations in response to tampering activity on the circuit element. Such detection of the tampering activity may involve monitoring a covert signal for tamper evidence detection.