Last night, when I was reading about the EgyptAir hijacking, I was thinking that fortunately this type of incident is now very rare. I remember that when I was a kid, this was one of the clichés in the American movies of the 80's (i.e., Delta Force), but with the tough security measures in place in most of the airports, this doesn't happen as often.

Wikipedia has a detailed compilation on the aircraft hijacking incidents, and there is definitely a decrease compared to the peak in the 70s.