It’s happened to most of us at one time or another. You leave your laptop open and a family member accidentally sees an email that you’d rather they didn’t (perhaps you are planning a surprise party for them), or a friend sees an embarrassing chat in your instant messenger program, or a colleague finds that website you were looking at during your lunch hour. If only there were a way to password protect individual software programs and applications (increasingly known as simply ‘apps’ ) on your Mac or Windows PC. Well, there is!