“What we’re looking at now is not just an attack that is ongoing, that is not just highly sophisticated, but also, we cannot trust the supply chain. We can no longer trust that any third-party application in these systems has not been compromised by Russia,” says NYT’s Nicole Perlroth. Aired on 12/17/2020. » Subscribe to MSNBC: http://on.msnbc.com/SubscribeTomsnbc About All In with Chris Hayes: Chris Hayes delivers the biggest news and political stories of the day with a commitment to in-depth reporting that consistently seeks to hold the nation's leaders accountable for their actions. Drawing from his background as a reporter, Hayes at times reports directly from the scene of a news event as it occurs to provide a firsthand account, digging deep and speaking with people who represent different points of view. Hayes brings the nation's officials, legislators, policymakers, and local activists to the table to address key issues affecting communities across America. MSNBC delivers breaking news, in-depth analysis of politics headlines, as well as commentary and informed perspectives. Find video clips and segments from The Rachel Maddow Show, Morning Joe, Meet the Press Daily, The Beat with Ari Melber, Deadline: White House with Nicolle Wallace, Hardball, All In, Last Word, 11th Hour, and more. Connect with MSNBC Online Visit msnbc.com: http://on.msnbc.com/Readmsnbc Subscribe to MSNBC Newsletter: http://MSNBC.com/NewslettersYouTube Find MSNBC on Facebook: http://on.msnbc.com/Likemsnbc Follow MSNBC on Twitter: http://on.msnbc.com/Followmsnbc Follow MSNBC on Instagram: http://on.msnbc.com/Instamsnbc #NuclearWeapons #Cyberattack #MSNBC Reports: Nuclear Weapons Agency Breached Amid Massive Cyberattack | All In | MSNBC