Due to a Chromium vulnerability affecting all released versions of the Mist Browser Beta v0.9.3 and below, we are issuing this alert warning users not to browse untrusted websites with Mist Browser Beta at this time. Users of “Ethereum Wallet” desktop app are not affected.Affected configurations: Mist Browser Beta v0.9.3 and below
Quick security checklist:
Avoid keeping large quantities of ether or tokens in private keys on an online computer. Instead, use a hardware wallet, an offline device or a contract-based solution (preferably a mix of those).
Back up your private keys — Cloud services are not the best option to store it.
Do not visit untrusted websites with Mist.
Do not use Mist on untrusted networks.
Keep your day-to-day browser updated.
Keep track of your Operating System and anti-virus updates.
Lastly, we would like to thank the security researchers that worked hard on reproducing and making invaluable submissions through the Ethereum Bounty program. If you need further information, get in touch here: mist[at]ethereum dot org. [We’ll update this post as the situation evolves].@evertonfraga