I'm using the Quicksilver clipboard history plugin to record the last 15 items.
The problem is i sometimes need to copy/paste passwords or other sensitive data (from 1Password for example) and i was wondering if there was a way to not log this type of data.
Thanks for your help
Quicksilver and/or Alfred would need to be aware of where those clips came from, i.e. from 1Password, etc, in order to exclude them.
1Password itself has an option to remove the clipboard data after a certain period of time (90 seconds by default, I believe).
I don't think there's an easy automated way to do what you want though.