Evernote is adding optional two-step authentication to its note-taking service. The new security measures follow a “coordinated” attack on the service last March. The service requires the use of a smartphone to prove your identity when logging in on a new device. The downside is that you risk being locked out of your account if you lose your phone. Starting now, all users can view their access history, which shows the last 30 days of use, including locations and IP addresses.”]

