This script was written a number of years ago and may
not work with the current incarnation of LiveJournal.
Live Journal Security Filter -
When you realize that the internet
will live longer than any fleeting thoughts and that public internet
journals are not a hot idea, this script will
allow you to make all your entries private.
Be warned, if your entries are not UTF-8 compliant, this script will delete
them. I may fix this later.