Videos

Most US businesses ‘very vulnerable’ to cyber threat: Security expert

ABC News’ Linsey Davis speaks with former President Donald Trump’s Homeland Security Adviser and ABC News contributor Tom Bossert about the cybersecurity threat from Russia.

Videos

Cyber security expert: Colonial Pipeline hack is ‘tip of the iceberg’

ABC News contributor Elizabeth Neumann, a former Homeland Security assistant secretary, discusses the growth of cyber threats and how to fight ransomware attacks. ABC News