Cybersecurity expert Chris Krebs on threat of Russian cyberattacks on Ukraine and its allies

CBS News cybersecurity expert and analyst Chris Krebs joins “CBS Mornings” to discuss the threat of cyber attacks by Russia in its assault on Ukraine. The former head of the Department of Homeland Security's Cybersecurity and Infrastructure Security Agency also discusses what the U.S., private companies and individual Americans should do to protect against possible cyberattacks.