1.	___________ may be used to mitigate the risk of unauthorized access in computer operations.	Physical controls
2.	____________ may be used to mitigate the risk of unauthorized changes to computer programs.	?
3.	Backup copies may be used to mitigate the risk of ____________.	destruction of data
4.	____________ may be used to mitigate the risk of viruses in electronic commerce.	?"
5.	____________ may be used to mitigate unauthorized access to programs.