dmitri alperovitch, let me start with you. what is this new information? >> this is an interesting case we've uncovered actually all the way in ukraine where ukraine artillerymen were targeted by fancy bear, the target of the d.n.c., but this time they were targeting their cell phones to understand their location to the russian artillery forces can target them in the open battle. >> woodruff: this is russian military intelligence who got hold of information about the weapons, in essence, that the ukrainian military was using, and was able to change it through malware? >> yes, essentially one ukraine officer built this app for his android phone that he gave out to his fellow officers to control the settings for the artillery pieces they were using, and the russians actually hacked that application, put their malware in it and the malware reported back the location of the person using the phone. >> woodruff: what's the connection between that and what happened to the democratic national committee? >> it was the same variant of the same accomplishes code we'v

i'm joined by one of the reporters who wrote the story, eric lipton; and by dmitri alperovitch.is the co-founder of crowdstrike, the cyber- intelligence firm that investigated the hacking of the d.n.c. eric lipton, i want to start with you. your reporting shows a really large gap between when the f.b.i. reached out to the d.n.c., and when president obama or the u.s. government attributed that these hacks were by the russians. what caused this? >> that's right. i mean, it was september of 2015 that the f.b.i. first reached out to the d.n.c. to alert an i.t. contractor who worked there, that there appeared to be someone operating within their system, and that operator was perhaps linked to russian hackers. and it was not until october of 2016, so more than a year later, that the administration, the intelligence agency formally issued a statement attributing that cyberattack to the russian actors. and so that's quite a long time, and it was-- many, many months passed between when the f.b.i. first essentially called the d.n.c. and the time in which the d.n.c. in fact confirmed that

on the phone to discuss all of these stories the fallout, we've got the right guest for you, dmitri alperovitch you for calling in. on the yahoo hack, a billion users on top of that other hack back in 2014. is this a yahoo-specific problem? or is it just a wider problem across all of these internet companies? >> it really is not. i coined a phrase six years ago when i said there are only two types of organizations, those that know they've been hacked and those that don't yet know they've been hacked. the reality is every organization for numerous other companies we have seen breached over the years, they're all facing these incredibly sophisticated targeted attacks from nation states, from organized criminal groups and really underscores how seriously we need to start taking cyber security. >> dmitri, it's david. you know, you taught me some time back of course these infiltrators can hang out, for lack of a better term, in their systems for years in fact. i mean, and i guess that goes to the yahoo hack. what took them in so long in terms of determining they'd been breached? and finally telling