"In our security investigation, we have found no evidence that any of the content you store in Evernote was accessed, changed or lost. We also have no evidence that any payment information for Evernote Premium or Evernote Business customers was accessed.
"The investigation has shown, however, that the individual(s) responsible were able to gain access to Evernote user information, which includes usernames, email addresses associated with Evernote accounts and encrypted passwords. Even though this information was accessed, the passwords stored by Evernote are protected by one-way encryption. (In technical terms, they are hashed and salted.)"
No indication as to the hashing mechanism — is it a simple, easily brute forced MD-5 or is it a harder, more secure PBKDF2, Bcrypt, or Scrypt with lots of rounds? Anyway, Evernote has reset the passwords of all of the affected users."