Hi,
All the policies are same in SEP 12.1 if we compared with SEP 11.x however In SEP 12.1 Default policies are tuned for Today’s threat landscape.
Few of them are listed below:
1) New ICMP Trigger for Location Awareness
2) Improved Tamper Protection
3) Virus & Spyware policy have now SONAR/ Download Insight configurable settings.
4) Now in SEP 12.1 RU2 there are 30 firewall rules.
5) Application and device control policy now support on 64 bit OS as well
Basically all the policies are enhanced with reference to newly added features (SONAR, Download Insight, Shared Insight Cache etc.)
Can refer these articles to learn more about it
What is new in Symantec Endpoint Protection 12.1?
http://www.symantec.com/docs/TECH163413
What's new in Symantec Endpoint Protection 12.1.2
http://www.symantec.com/docs/HOWTO81091
You should check this article as well.
Few differences between SEP 11.x and SEP 12.1 EE
https://www-secure.symantec.com/connect/articles/feature-differences-between-sep-11x-and-sep-121