Tezos activation


#1

I have been reading that tezos need to be “activated” if you bought in the ICO. The tezos website seems to have an activation tool https://activate.tezos.com/

I have also read about the Stephen Andrews activatez activation tool.

Is there a difference in using on or the other?

Is it safer to use the tezos website rather than activatez or other third party?