I think the most extreme measure any parent can take to protect their children against predators on the Internet is to allow only supervised Internet access. However, most parents don't seem to be that willing to keep their kids safe. So the best they can do is offer common sense to protect their kids.
Parents should take more extreme measures against predators on the internet.There are several ways they can achieve this.They can limit children's access to the internet,use a filter,or install passwords.If parents don't do something then it won't be long before their child gets wrapped up with someone on the internet and gets victimized.
No, parents should not take more extreme measure to protect their children against predators on the internet, because the risk that someone will be harmed by a random predator is relatively rate. Children should speak with their parents about all aspects of their lives. A teenager is most likely to be harmed by someone that they know.
Of course parents should take measures to protect their children against internet predators. To me extreme measures imply something pretty stringent or violent. The most extreme measure would be to completely block internet access, but that doesn't teach children to protect themselves. We also don't want children to live in constant fear, because that's not healthy either.
In almost every situation today where parents try to 'protect' children, in reality all they are doing is protecting themselves from anxiety and fear - something that benefits them but harms the child more, in many cases. Its easy to be scared by sensational media reports, but those are exceptions to the rules.