Due to the complexity of the Bomb and the increased risk of hacking, we pushed a rather drastic update that implements a number of changes and improvements, including enhancement of efficiency and scalability of the blockchain, acceleration of transaction speed, and additional security in the form new formats private keys which will help protect users against hacking.
If you are using private key or UTC, then you need to go into the wallet and update manually, otherwise they risk being unprotected.
How do i update my Ethereum wallet?
1. Go to our website MyEtherWallet.com
2. Unlock your wallet using your Keystore File (UTC / JSON) or simply use your private key.
3. Click Unlock and wait for the update.
Please note that you need to manually update your wallet, failure to do so may result in funds being lost.
We are taking these measures to protect both you and our network from phishing and malicious attacks.
Thank you for your cooperation and understanding!
MyEtherWallet Security Team.
If you use other methods, then ignore this message.
Dont hit his link.