We do freeze/restrict accounts, cancel debit cards, etc. in response to DNEs.
The specific steps we take depend on the type of account(s) and the ownership of the accounts.
We do the same as Jac. We only freeze accounts if it is the sole owner. In addition, we cancel all debit cards in their name, place alerts on any account they sign on, see if there are any benefit payments received after death, restrict their online banking account, and whatever else the particular situation calls for. We are actually going to create a worksheet to help streamline the process.