July 8, 2010May 30, 2014 Want a key combination to lock the Mac screen like CTRL-ALT-DEL? by happyorright LockTight for Mac OS X Intel gkoya. Is the answer. It is free and even works on Snow Leopard. I have used it and it works great and helps people who are used to the Windows way of using the keyboard to lock the screen more intuitively. Related Posts:Stories from my Past: Good intentions aren’t enough Since I work in customer service in technology I often enjoy reading ..Credit card offers from LinkedIn? Has anyone else received credit card offers from LinkedIn? I received one ..People break what they want to replace A study shows that people break what they want to replace. It ..Firefox is best for privacy The article says that Firefox is the most secure. I have been ..