That is not what it says and is not what it means.
This is referring to people who claim to be believers but are not. This may specifically refer to people who claim to be Christians or Muslims and believe me, there are many of these nowadays.
If you were a satanist, for example, you would not want people to know it as they would reject you as a pervert and a murderer but if you claimed to be a Muslim or a Christian it is much more likely for you to do serious damage in the community since if their lord comes to kill, steal and destroy so it therefore follows that they do too. It is, obviously, much easier to poison a community by becoming a supposed trusted and respected member of it.
In the end times, which we most probably are now, there will be many of this persuasion. When they speak and act, they do so as if they were sweetness and light. However, when the eyes are off them and they show their true colors they are actually utterly hideous.
As I said, this has absolutely nothing to so with Judaism and Jews it is about poisonous hypocrites who pretend to be believers when they are most certainly not!
I am pretty certain that within many church congregations there are perverts who have a secret agenda and this may also be true of many mosques.