Address Change w/out customer signature

Just wondering how other banker's feel about allowing a customer to request an address change without signing an address change form. In this case a notification of the address change would be sent to the old address. Trying to get some opinions.

I would never change address without written authorization. We had an instance where a soon to be ex had his girlfriend call to change the address and then used the info in divorce regarding money settlement. Our customer was angry and rightfully so. I didn't do it, but my employee did. Since then rule is...never without signature and verify that signature to the sig card

We do allow address changes without a signature. They can be accepted via telephone but only through our Security Department.

We allow it - only for the primary owner and we send out a confirmation to old address too.

One control that you can employ in place of requiring a signature would be to send a confirmation to the old address and the new address.