Amid the unveiling of Illinois’ Vax Verify system, concerns are raised about the security of the vaccine verification portal. (WTTW News)

Could Illinois’ vaccine verification portal — known as Vax Verify — leave residents’ personal information vulnerable to hacking? We discuss privacy concerns surrounding the newly unveiled portal.

The U.S. Treasury Department building viewed from the Washington Monument, Wednesday, Sept. 18, 2019, in Washington. (AP Photo / Patrick Semansky, file)

Plus: Analysis of the attack on ‘Chicago Tonight’

U.S. government agencies and private companies rushed to secure their computer networks following the disclosure of a sophisticated and long-running cyber-espionage intrusion suspected of being carried out by Russian hackers.