Internet security experts are growing increasingly worried about a new worm that is infecting millions of computers around the globe. The infection, known as “Conficker” or “Downadup,” is spreading through a recently uncovered vulnerability in Microsoft Windows. So far the worm has infiltrated business, government and personal networks, as well as consumer devices such as USB memory sticks.

Though it first appeared in October, Conficker has exploded in recent weeks. The rapid spread of the worm seems to be “the first step of a multistage attack,” according to the New York Times. Experts don’t yet know what the worm is designed to do, but fear the worst is yet to come. Read more