G PHYSICS
G06 COMPUTING OR CALCULATING; COUNTING
G06F ELECTRIC DIGITAL DATA PROCESSING
G06F2221/00 Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
G06F2221/03 Indexing scheme relating to G06F21/50, monitoring users, programs or devices to maintain the integrity of platforms
G06F2221/031 Protect user input by software means