Abstract: A heat exchanger plate module comprises a pressed heat exchanger plate and a flat plate, and a heat exchanger comprises plural of the modules. The plates comprise first and second longitudinal end portions each having a fluid port, and an intermediate heat exchange portion between the first and second longitudinal end portions. The plates further include a pressed corrugated pattern with alternating tops and bottoms in the thickness direction. The pressed pattern comprises in the first and/or second longitudinal end portions, a first fluid channel pattern leading fluid flow into the fluid port and/or a second fluid channel pattern bypassing the fluid port. In the intermediate heat exchange portion, a third fluid channel pattern fluidly communicates with the first and/or second fluid channel pattern and comprises longitudinally extending wave-shaped pressed lines that form discrete longitudinal extending fluid channels, when the pressed heat exchanger plate is attached to the flat plate.

Abstract: A card reader and a method performed by a card reader, comprising receiving in the card reader a card comprising data stored on the card, indicating the identity of a person, obtaining data from the card, detecting any valid primary account number in the data, upon detecting a valid primary account number in the data, truncating the data by redacting parts of the detected valid primary account number to remove sensitive data while maintaining the issuer identification number of the primary account number and the last four digits of the valid primary account number.