Address security has come up a few times recently, especially as our volumes increase toward home delivery.
Implement a tenant setting that allows configuration over whether or not addresses are locked down, which means only visible to those who created them.
Internally, if this option is set, only allow customers to see/use addresses that they have used previously.
Restrict Viewing of Addresses Customer specific only
Merged
Customer Database - Data Security
Merged
Not sharing the address book info with others
Merged