22.7.1 Lock Reports
Lock all reports with a security code in a single click.
On the Ribbon click Setup -> select Options2 tab
On the Reports group -> Security Codes (default)
Enter a security code for all report
When prompted "make sure you have set the code right" -> click Yes
Click done
Only employees with the same security codes can access these reports
Reports with existing security codes will not be affected.
22.7.2 Lock specific reports
Lock all Reports first following the procedure above and then change only those specific reports that you want a particular group of employees can access.