broken code metaphor

access accession admittance bar barcode break breaking broken burglary cipher code coded computer concept conceptual danger dangerous dangerously data digit encoded guard hack hacker identification illegal industrial information insecure insecured insecurity lock metaphor metaphorical number numbers numerical open opened padlock password risky safeguard safekeeping safety scan scanning security symbol technology unauthorised unfastened unfolded unguarded unlock unlocked unprotected unresolved unsafe unsafety used