Most Secure DDNS Service

I have been researching WAN Reverse TCP attacks on Nullbyte for quite some time and i have come across a huge gap in security, that being the information that your ISP / DDNS service retains about your identity.

Now im confident most ISPs will leak information but what about the DDNS service?

What DDNS service is the most secure? And why?

Besides a secure DDNS service, is there any other techniques that you can mask your IP supplied by your ISP? Perhaps a VPN service that acts as the Host for you and routes all traffic to you?