It's a way for a security firm that does audits, escrow and such for customers -- who all have websites -- to sell more services.

"We sell domain names too!"

Just one more thing they can add to their list of "services".

Does it increase security?

Just throw in some buzzwords that clients identify with security. Sold.

No one ever audits the auditor.

Maybe it increases security in the mind of the client or the end-user.

And that's enough to sell the services.