Hi CoinVault team here,
You are right the general rule is if you don't own the private keys you don't really own your funds.
CoinVault does not hold accessible copies of private keys, only encrypted copies which are useless without the wallet password.
The wallet HD seed is encrypted with the users wallet password (which goes through 64k rounds of a KDF function and a strong salt) we then store the encrypted data only.
The user has to provide the wallet password to be able to sign transactions.
This still requires trust in the developers code (which applies for many wallets out there including hardware and offline wallets) but the attack surface is reduced dramatically.

I am happy for any feedback you have on the wallet

coinvault.io team

Hi Argentum community,
CoinVault dev wallet here.

Would you be interested in adding ARG to https://www.coinvault.io/

PM for details

Hi we take security very seriously read more here https://www.coinvault.io/info/security
Did you have trouble to sign in?

Was this meant to me?
If yes didn't receive a pm yet

Hi is the bounty for a web wallet still relevant?
Would you like to use coinvault.io
Send a PM to discuss

This is a great idea.
Would you be interested in adding to web wallet https://www.coinvault.io
PM me it yes

coinvault.io team here.
We are happy for anyone to use our wallet and welcome feedback.
Some more info, wallet is HD encrypted with a wallet password so only the user has control over the coins.
Support for mnemonics and a backup key
Anonymous, you can register with a pseudo user name no additional details required.
Multi currency, multi HD account (up to 3 accounts per coin).
Partly open source

Thanks

Hi devs/community,
I noticed there is no web wallet for VeriCoin
Would you be interested in adding vericoin to https://www.coinvault.io

Thanks
 

Such a shame the logo is really nice 

Thanks gnasher
coinvault.io is currently running 1.4 https://github.com/CoinVault/Nako/blob/master/docker/reddcoin/Dockerfile
I will try to upgrade asap, will you be sending notifications to all 3rd parties once network reached 85% supermajority ?

Excellent is this a mandatory update?
You can contact me at dan@coinvault.io

Just wanted to let you know reddcoin has a web wallet https://www.coinvault.io

A few more coins added to coinvault.io see here our list of coins https://www.coinvault.io/Info/Coins
We'll soon be releasing a guide on how to get your coin added

Will you be interested to be added to web wallet coinvault.io?
PM with bounty

Any plans on an exchange?

Ubiquoin is added to https://www.coinvault.io

Store your coins securely on a web wallet

Any issues let me know

Somebody needs a hug 

Hi,
Does NEVA want a vault?
Would there be a bounty on adding NEVA to coinvault.io?

Hi,
Is there a bounty on a web wallet?