It only needs your Active Key for the 1st time to authorize our app on HiveSigner.
After that, you can use your Posting Key and this is how HiveSigner works.
P.S. Always double check that you are on the correct website HiveSigner.com and that there is an icon of a closed lock next to the URL of the websites you are on, this is general advice and not unique for D.Buzz.
RE: Official Launch: D.Buzz is Alive on the Hive Blockchain