Russia considered likely culprit in major U.S. cyberattack

Between March and May this year, hackers broke into several U.S. federal agencies, including the one designed to fend off cyberattacks against the country, officials said Sunday. The significant breaches were only discovered recently with Russia considered the likely culprit. Nick Schifin spoke with Dmitri Alperovitch, a cybersecurity expert and chair of Silverado Policy Accelerator, to discuss.