Yes. Typically for early access to software undergoing testing. Pretty innocuous - I could talk to other people at my company about the software, but not to the general public until it was released in 3-6 months. Which makes sense - I wanted to collaborate on what features and functionality were created, and they didnt want some idiot telling the media "XYZ company new software is heckin' terrible [because of a TEST feature they added for alpha testing an hour ago]".