part of the overall safety that depends on functional and physical units operating correctly in response to their inputs. Note 1 to entry: See IEC/TR 61508-0, Functional safety of electrical/electronic/programmable electronic safety-related systems – Part 0: Functional safety and and IEC 61508. [IEC60500 351-57-06]
the protection of information against unauthorized disclosure, transfer, modification, or destruction, whether accidental or intentional[IEC60500, 721-08-57]