I am sure that you are asking about the world of mankind, not the earth.
The Bible answers your question.
Revelation 12:7-12 - Study Bible
And war broke out in heaven: Miʹcha·el and his angels battled with the dragon, and the dragon and its angels battled but they did not prevail, nor was a place found for them any longer in heaven. So down the great dragon was hurled, the original serpent, the one called Devil and Satan, who is misleading the entire inhabited earth; he was hurled down to the earth, and his angels were hurled down with him. On this account be glad, you heavens and you who reside in them! Woe for the earth and for the sea, because the Devil has come down to you, having great anger, knowing that he has a short period of time.”
1 John 5:19
The whole world is lying in the power of the wicked one.
2 Corinthians 4:3, 4
If, in fact, the good news we declare is veiled, it is veiled among those who are perishing, among whom the god of this system of things has blinded the minds of the unbelievers, so that the illumination* of the glorious good news about the Christ, who is the image of God, might not shine through.
2 Timothy 3:1-5
But know this, that in the last days critical times hard to deal with will be here. For men will be lovers of themselves, lovers of money, boastful, haughty, blasphemers, disobedient to parents, unthankful, disloyal, having no natural affection, not open to any agreement, slanderers, without self-control, fierce, without love of goodness, betrayers, headstrong, puffed up with pride, lovers of pleasures rather than lovers of God, having an appearance of godliness but proving false to its power; and from these turn away.
When talking about the religious leaders, Paul said this:
"For such men are false apostles, deceitful workers, disguising themselves as apostles of Christ. And no wonder, for Satan himself keeps disguising himself as an angel of light."