Kaspersky's blog on the topic. A bit better than McAffee's
https://usblog.kaspersky.com/heartbl...=1086761374411
As for when to change passwords, note the recommendation about 2/3 of the way down to reissue new site certificates and revoke old certificates. Just after a new sever certificate is issued, is when you change your password for that site, if that site had problems.
Folks should simply let the IT server techs get the patch loaded instead of wasting their time with questions about stuff that no one can actually do anything about until the patches are online. Excuse me for grumpy, been busy dealing with clients (protecting the techs time) as our clients simply do not have the issue in the first place (they don't understand that). So all our client machines are simply getting new certificates.