There is no fool proof way of protecting your child from sexual abuse, but education and open communication can help.
Teach them the names of their body parts including basic sexual anatomy.
Teach them that it is ok to say no to whoever when they feel unsafe or uncomfortable.
Let them know if they are told to keep a secret, they are allowed to tell you (parents/caregivers) the secret as well.
Address and talk to them about the TV and media that they see when it consists of sexual violence to let them know what is right and wrong.
Choose caregivers carefully: this can include screening them or getting to know them personally.
Let them know they won't get in trouble if something happens to them.
Talk to them about caring for their friends; if they see that their friend is in danger, let them know they can talk to you.
For older children, make the media relevant by asking them their opinions on what they see online and evoke conversations about it to inform them of what's healthy and safe.
Teach them about sexual assault directly and bring up how abusers are usually people we know.
There are many different ways to educate you child on sexual abuse prevention, but having a strong relationship with constant communication can allow your children to feel comfortable talking to you if anything happens.