cyber on oh radiations for the fbi in new york leo tatio leads in financial and security attacks. it s a tough job. the odds are unfortunately in favor of the hacker at this point. we are trying to change that. reporter: 70 oh% of companies don t know they are being hacked, according to a reevent verizon survey. for many of the networks the breach goes undetected for months at a time. reporter: to keep up the federal government is expanding efforts. that means tapping agents like tadeo who who spent his career fighting organized crime, recruiting computer experts and building out the cyber forensics department for the fbi. we have to adapt. we have to constantly keep up with the threat. what you saw in the cart program is a significant investment in our oh forensic capabilities. reporter: we got a look at the computer mall sis response team, c.a.r.t. where agents