What happened?

I am a nurse, and have used Micromedex as my primary drug info site for a few years. It is accurate, easy to use, and very handy when a patient asks me something about a medication, because I can pull it up right on the spot and we can read it together. I have never had a problem with the app until now. When I tried to access it yesterday it asked for a password. I have never needed a password before, and dont understand why one is needed now. If I ever had a password, it has long since been forgotten. What happened??

Cartam about IBM Micromedex Drug Int.