I'm not going to get into a flame war here but history has made me very cautious of Samsung and from what I've seen they've been one of the worst offenders when it comes to security updates, add to that the large number of custom software they bundle with their devices and you tend to have quite a large attack vector.

Reminds me of the time that I was working at a large (5K+) org and we found a virus to be circulating that was spread by custom scanner software that was really just bloatware / trayware that came bundled with various models, it hardly ever got updated and it did crazy things like run a local (custom) http server etc... what a nightmare.