President Donald Trump’s administration is preparing to turn to private businesses to help mount offensive cyberattacks against foreign adversaries, according to people familiar with the matter, potentially expanding a shadowy electronic conflict typically conducted by secretive intelligence agencies.

The White House plans to make public its intention to enlist private companies in more aggressive efforts to go after criminal and state-sponsored hackers in a new national cyber strategy, a draft of which has been viewed by industry officials and experts. The strategy is expected to be released by the Office of the National Cyber Director in the coming weeks.