The Mark of the Beast in the book of Revelation.
“He causes, both small and great, rich and poor, free and slave, to receive a mark on their right hand or on their foreheads, and that no one may buy or sell except one who has the mark or the name of the beast, or the number of his name.” Revelation 13:16-17 (NKJV).
“If anyone worships the beast and his image and receives his mark on the forehead or on the hand, he, too, will drink of the wine of God’s fury, which has been poured full strength into the cup of his wrath.” Revelation 14:9,10
Then I heard a loud voice from the temple saying to the seven angels, “Go, pour out the seven bowls of God’s wrath on the earth.” The first angel went and poured out his bowl on the land, and ugly, festering sores broke out on the people who had the mark of the beast and worshiped its image. Revelation 16:1
But the beast was captured, and with it the false prophet who had performed the signs on its behalf. With these signs he had deluded those who had received the mark of the beast and worshiped its image. The two of them were thrown alive into the fiery lake of burning sulfur. Revelation 19:20
I saw thrones on which were seated those who had been given authority to judge. And I saw the souls of those who had been beheaded because of their testimony about Jesus and because of the word of God. They had not worshiped the beast or its image and had not received its mark on their foreheads or their hands. They came to life and reigned with Christ a thousand years. Revelation 20:4
It’s crucial for believers to avoid the mark at all costs. The desire for material wealth, luxury, and privilege will be the lure. A person’s greed will be his or her down fall. In Luke 12:15, the Messiah warns “to be on your guard against all kinds of greed.”
I think we’re getting much closer to what the devices will look like with the google glasses and iwatches. They already have wearable neurocams that record scenes when it detects user interest. It will be when these devices both interact with the brain and are connected to large computer servers such as quantum computers, is when you can say the mark of the beast is here. These devices will be very seductive. Everyone will want them. More so than the current tech.