Whats the difference between an account password and a private password?
Your account password is the password you entered when you installed CrashPlan. Along with your email address, it links all your computers together. Enter the account password if you indicated that a password is required to run the CrashPlan desktop. You’ll also use the account password to access your CrashPlan account online. A private password is used to prevent someone else from restoring your files. If you have enabled the private password option, you’ll need to supply your private password before you can restore files. The private password is never sent to CrashPlan, and therefore CrashPlan Support cannot retrieve or restore this password for you if you lose it.