How secure is sharing via WeekCal.com?
Uploading events to WeekCal.com is done over a secure SSL connection, which prevents anyone from evesdropping. Events can only be shown by having the unique, personal, non-guessable web-link to the event.
After one month, the event will automatically be removed from WeekCal.com to prevent accidental access by others.
for information on privacy and Week Calendar.