i also tried to contact their support , but they never replied me i think it is their tactic or something , also a lot of my dogecoins around thousands of them hacked were transmitted to the dogecoin wallet which was owned by block.io
https://dogechain.info/address/D7EH1Vpbjx3Rxo1ntK1ZQhhCs1ZzTSatfBthis wallet is owned by block.io but when i tried to message them i never got a reply.
i don't know also i tried chatting on their free node chat , but nobody responded.
free node link -
https://webchat.freenode.net/channel - #block.io
but it is a good feature that they lock the account off in three attempts , also they have a 2 fac , which i have turned on , other wallets which don't have 2 fac are vulnerable .
the security features are good but support is very bad and late replying .
does anyone have a link for their forum topic in bitcointalk.