Able to access VB code on a protected workbook

[KSP]

I've password protected a workbook. It locks down the worksheets to limit
users access. I found, though, that users are easily able to get into the VB
code by either using the Tools drop down or the Alt+F11 keys.

Is there any way to secure the VB code?

Thanks

 

[Roman]

Right click the VB project in VB Editor and in VBAProject properties
set the protection.