When I first started at IBM, I was quickly impressed with one thing that has been a problem at other places I’ve worked. Usually, the security policy at a corporation is to use a person’s sense of responsibility to cut down on tailgaters — the people who enter the buliding without badging in by following someone close enough to keep the door open.

Of course, this doesn’t work because usually people don’t challange strangers, and being nice, we hold the door for them anayways. Well at IBM, they use a revolving door with a weight sensor in addition to the badge system, so if you badge in, the door will only let one person’s weight shift to go through (similar to parking lot barriers).

Of course this still has some problems, such as a weightless person going through (i.e. ghost), the normal door on the side for large packages, and the fact that you can tag in multiple times in succession.

Posted by Kevin in Blogs Tags: IBM, neat