I’ve been advising people to use 1Password for years now. Turns out that continues to be good advise. 1Password is immune to the latest security problem that’s affecting some 70% of all Internet sites.
While your data is safe within 1Password itself, there is a good chance websites you used were vulnerable and did not protect your username and password.
The knee jerk reaction to this news is to change all your passwords immediately. While I will be recommending you change your passwords, not all websites have been updated yet to protect against this vulnerability.
The best advice I can give you is to change your most important website passwords immediately, including your email, bank accounts, and other high value targets. This will provide your best defense against previous attacks.
After a few weeks, websites will have been upgraded with new SSL certificates, and you will be able to trust SSL again. At this point you should change all of your passwords again.