This is a 'best practice' question:
Should we be sending a Salesforce GUID in an email? We have a button in an email to ask them for consent (to a thing). That button links to a VF Page or a Marketing cloud page (we can go either way). In either case the query string will contain the ID of the lead.
My contention is that a user could change the URL and [...klyAAE ] isn't very different to [...klYAAE] and maybe that is a record.
I get some emails from Salesforce / SFMC users and I see urls such as: http://click.e.domainname.com/?qs=07d1f922e432d9f8b76fc2ecd423c011ff2aa49fdc139daa21c87ee360df886e2b3cfc7b62180ba77a05d1afbc9d75512d7a073dfd34a5d1
So - What am I missing?