This fellow discovered a vulnerability that allows someone to steal you 12 word backup phrase, restore your wallet and steal your coins: https://vxlabs.com/2017/06/10/extracting-the-jaxx-12-word-wallet-backup-phrase/
And doesn't sound like Jaxx CTO is planning to fix anytime soon:
I need to stop using Jaxx. Anyone have any other wallet suggestions?
Thank you. Thank you a x1000 times.
Just while ago a read some positive notes abt JAXX, and was going to try it today.
So I am so glad I came across your post.
Thank You
Bugger. I really liked the Jaxx wallet.
I guess I'm just lucky that I don't have much in it. There are advantages to being poor ;-)
Welcome to Steemit :)
I follow u, follow me back if u want lot of fun and amazing picture every day.