You can block running the senstive software when anyone runs the locked programs. Lock executable programs on your computer to password-protect any executable file from non-authorized execution.

For example, if you do don't want other persons to use your tax preparation software, personal finance or other programs you like, you simply need to run this application. Is such an application available? GiliSoft Exe Lock can lock any programs on your local computer, a person can not run the password locked programs without a password. What I need is a software that works like AppLock on Android or something, which is basically asking you for password every time you open it. Password protecting the executable files is just another way you can heightened security in a shared environment. Most applications don't come with user restrictions and this becomes a security flaw when two or more people are using the same computer (There are some applications on my computer that I don't want people to use, and I can't put a password on Windows due to certain reasons.).

For mac download GiliSoft Exe Lock 10.8