See the Internet security thread:
I summarize the most important points: DON´T register at a zoo site with a internet persona (nickname) that you are reknown for at other places on the net DON´T USE an avatar, profile pic or any personal pic that you are reknown for using on non zoo sites DON´T register using your real name...
www.zooville.org
Consider using Tor Browser -- to be even more secure, use Tor Browser within the Whonix virtual operating system. Another option is to use the Tails (amnesiac) operating system. Some people use VPNs, or Tor Browser + VPNs, but that has a number of downsides. Both Tor Browser and VPNs hide one's real IP address.
With regard to the legality of zoo porn, it's currently a state-by-state issue in the United States. Viewing and possessing zoo porn is legal in most states (it is illegal in a few states, such as Oregon and Louisiana). Making or distributing zoo porn is illegal in several U.S. states, including Oregon, Washington state, New Hampshire, Vermont, Nevada, Pennsylvania, Tennessee, Florida, and Texas (most of these states have made bans
recently, within the past 10 years). The laws relating to sex with animals and zoo porn (in the United States) have been getting worse and worse in recent years, and no one is doing anything to fight them.
One issue is that zoo porn may be considered "obscene", meaning "obscenity" laws in various states may apply.
If you save zoo porn, you should encrypt it with a program like VeraCrypt.