Last night LastPass noticed some unusual activity on their database servers (those servers that contain all the LastPass users’ passwords). Since the LastPass folks are paranoid (a good thing when you’re storing people’s passwords) they are making everyone change their “master password” (that’s the password which unlocks the file with all your other passwords in it). At this point it doesn’t look like much, if any, data was compromised but better safe than sorry!
Read their notification for the full list of precautions that LastPass is taking to ensure their users’ data is secure. Kudos to LastPass for posting about this potential breach, and handling it in a transparent and comprehensive manner.