I have just returned from a 2 week trip to Malaysia.
It is safe, at no time did I feel threatened.
I have traveled extensivly and I would rate Malaysia safer than many places in europe.
My only concern was pickpockets in the markets. I don't know if there are any it is just that been crowded and bumped it would be a perfect location for them.
This Islands were just fantastic, laid back, relaxing. The diving was good, we were very early in the season so no crowds.
We will be back, hopefully before the end of the year.
Victor