US government is 'exceptionally vulnerable' to cyberattacks, security expert says

The United States is "vulnerable" to cybersecurity attacks and need to step up their defense mechanisms, the co-founder of the computer security firm CrowdStrike told CNBC Saturday. Recent cyberattacks, including NotPetya last June, have been devastating to American companies, causing them hundreds of millions of dollars in losses. Other attacks, such as the cybersecurity breach at the Office of Personnel Management (OPM) in 2015, have reportedly given key information to governments like China's that can be used to blackmail American citizens working with sensitive intelligence.

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