Abstract: Protection of POS terminals is enabled by multi-pronged security apparatus that includes: initializing the POS terminal and storing a profile of the terminal, and thereafter monitoring for any change in the POS terminal environment; inserting a bait into the memory (e.g., RAM) of the POS terminal, and monitoring the bait, such that when it is detected that the bait has been read, an indication of potential intrusion is issued; and providing communication channel between a monitoring center and plurality of POS systems, so that whenever an indication of potential intrusion is issued by a terminal, it is sent to the monitoring center and the monitoring center alerts the administrators of the participating POS systems, and the affiliated merchants about identified attacks to enable a response or removal of compromised terminals from service, including but not limited to temporary payment transactions blocking.

Abstract: This invention discloses reagents and methods for identifying peptides that modulate biological activities in cells, tissues, organs and organisms.