After discovering that passwords for many user accounts were logged in clear text internally, Twitter is encouraging all users to change their passwords.

AgileBits has introduced 1Password Business, which extends the subscription-based password-management service to large organizations. New features include finely grained access control, custom roles, activity logs, and usage reporting.

Recovering a user’s forgotten password used to require special tools or creative administrative management. It’s fairly easy in recent versions of Mac OS X, but many of us still have or need to help people with older operating systems. Here are all the different ways to get back into a Mac if you’re locked out, no matter what version of Mac OS X it’s running.