I worked at Symantec during the period of time that they were splitting back into Veritas and Symantec. It was very chaotic, with lots of construction going on and people moving all over the place.
However, this meant that I got a very nice office in a location that few programmers seemed to be working in, and was able to work on a project that I was able to make entirely my own.
I really enjoyed working with every individual I was able to, and learned a lot from them. I don't believe that my experience would be able to help anyone trying to work there now, but I would still recommend anyone wanting to get into security to look into working there.