joining us to discuss these efforts, tom pageler, chief security officer for docusign a company thatllows businesses to sign and send documents securely. kurt stammberger, senior vice president of market development with norse corporation, which tracks cyberattacks in real-time. and aarti shahani, npr's tech correspondent. and kurt stammberger, you want to begin with you. your company's website, norse, there is a map showing live attacks as they happen. let's take a look at it. and if you can describe to us what we're looking at here. >> well, what we're looking at here is a live map of attacks under way on the internet right now. we have a worldwide deployment of about 8 million sensors in 50 countries around the world that emulate about 3,000 different types of devices. everything from cash registers to atm machines to medical devices. so we can deliver very fast intelligence to our customers about who's being attacked, where, and what types of devices are being targeted. >> so for example, if you see a lot of attacks on credit card companies, for example, then you can alert credit