Please be aware that if you received an email with the above message (or similar message) from 'slackbot' PLEASE do not click any of the links provided!!! They do not go to the actual MyEtherWallet but instead direct you to a very sophisticated phishing website that has since managed to steal over $100,000 USD in ETH and tokens. It does this by stealing your private keys.
I also wrote a piece on protecting yourself from phishing - you can find it here: https://steemit.com/cybersecurity/@sassal/j4rfb-staying-safe-online-avoiding-scams-and-protecting-yourself-from-phishing
Addresses that the Ethereum and Tokens were sent to (if you want to keep track of stolen funds)