This page explains the laws that apply when you use the photo or recording functions on your phone.
It also explains what you can do to stay out of trouble and your options if someone has an inappropriate photo or video of you.
For example, even though most beaches are public places, you can get in trouble for taking invasive photos of people in their swimmers without their permission.
Private property is a space where the owner can set rules or restrict entry.
This includes homes, shops, sport and performance venues, museums and galleries, schools and similar places.
These places can make rules that ban people from photographing or recording any part of the space or the people within it (unless they can be seen from a public space).
But it can definitely be a form of victimization either from the outset or after a break-up or conflict in a relationship.
Between 20, GCHQ, Britain's NSA, ran a program called Optic Nerve that scanned live webcam chats on Yahoo (and probably other chat services).
There are different rules for photographing or recording things depending on whether you are in a public place or on private property.
A public place is a social space that is open and accessible to all, like a park.
The practice is not illegal when photos are shared between consenting adults, but when minors are involved, sexual-exploitation and child-pornography laws can come into play, so great care is needed in the handling of sexting cases involving people under 18.
However, although there have been some highly publicized cases, prosecution of minors for distribution of sexting photos has been relatively rare in the US.