Database content is notoriously targeted by hackers and often breached. You have seen it happen to even large companies like Sony, Verizon, and Target in recent years.
One way to protect data is to store it with one-way encryption. We have several encryption options with Data Bridge that can be used. If a database stores information encrypted, then even if someone gets ahold of your database content they won't be able to make sense of the data in it.