Org encrypts everything inside a heading with the chosen tag. It does not try to be "smart" and decide what should and what should not be encrypted inside that heading.
Putting the time-stamp in the headline as suggested by others should work, since org uses that information and the heading itself is not encrypted. Another solution is to put the information that must be encrypted inside a subheading and encrypt only the subheading. This way you can have all the usual org data (schedule, deadline timestamps, lognotes, etc) in the main heading and profit from the org power while all your sensitive data is still encrypted. -- Darlan
