A new $100 bill equipped with two new security features was unveiled April 21, 2010. The new design — which employs a new "moving" microprint technology — is something straight out of the "Hogwarts School of Witchcraft and Wizardry". When the bill is moved side to side, the image on the bill appears to move up and down. When moved up and down, the image appears to move side to side.

The new security features include a blue 3-D Security Ribbon on the front of the note with images of bells and 100s, which move and change from one to the other as you tilt the note. Another feature is the "Bell in the Inkwell" image that changes color from copper to green when the note is tilted, an effect that makes it appear and disappear within the inkwell. The new design for the $100 note retains three effective security features from the previous design: the portrait watermark of Benjamin Franklin, the security thread, and the color-shifting numeral 100. The 6.5 billion $100 notes now in circulation will remain legal tender. The new bill will go into circulation Feb. 10, 2011.