Altera Quartus II Settings File - Manual (Page 242)

SECURITY_BIT
Enables the security bit support, which prevents a device from being examined and reprogrammed.
Type
Boolean
Device Support
This setting can be used in projects targeting any Altera device family.
Notes
This assignment is included in the Fitter report.
Syntax
set_global_assignment -name SECURITY_BIT <value>
Default Value
Off
242 SECURITY_BIT
MNL-Q21005
2015.05.04
Altera Corporation Quartus Settings File Reference Manual
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