Evernote, the wildly popular list and productivity app, has been hacked. If you are an Evernote user, you along with 50 million other Evernote users, are being asked to change your password.
According to Techcrunch, Evernote reported that it first noticed the breach two days ago, on February 28, 2013. Â Evernote says that no credit card or payment information for premium or business users was accessed.
However, user information including email addresses and passwords, was accessed.  The company says password were encrypted (“hashed and saltedâ€) and they believe them secure.
But in an abundance of caution they are asking users to change passwords anyway.  The security notice on the Evernote website today reads:
“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.)
While our password encryption measures are robust, we are taking additional steps to ensure that your personal data remains secure. This means that, in an abundance of caution, we are requiring all users to reset their Evernote account passwords. Please create a new password by signing into your account on evernote.com.â€
Evernote joins a growing list of hacked companies. Others include Apple, Facebook, Microsoft and Twitter.  As we wrote earlier this week about the Microsoft hacking, it’s dangerous to reuse passwords. Why  Simply put, if a cyber attacker gets access to login data at one service or app, and you re-use that same login elsewhere, you’ve now put your other accounts at risk.
Evernote unveiled a small business version of its app just last December. Â Evernote is growing fast. Â Back in September 2012 we reported that it had 40 million individuals as users. Its user base is now up to 50 million.
This hacking is not likely to stop Evernote’s growth momentum â€" unless the situation turns out to be much worse than  reported.  With so many high-profile hacked companies, the public and business users will probably take it in stride.