wake-up call for governments. that s because the tools used here in this attack were stolen from the nsa. microsoft wrote that governments should consider the damage of stockpile cyber weapons and they should treat cyberspace as they would physical weapons. that s remarkable. this is a major story, folks. let s get more on the global impact here and what s in store today with cnn s business and technology correspondent, samuel burke, live in london. hi, samuel. samuel, great to have you because it s an important story. new cases today, but first, christine says, you know, if you didn t update, you re in trouble. are we in trouble in the united states? and what can people do right now to protect themselves? reporter: anybody can fall victim to this, no matter where you are. luckily, simple patch. just update windows. if you haven t done it since march, you re vulnerable. that s that little update you get in the lower right-hand corner to restart your computer. do it and you will