WaPo:

Among the many wild conspiracy theories about the 2020 election, few rank as high when it comes to both baselessness and reach as those involving voting machines. The theory that voting machines were programmed to steal the election from incumbent President Donald Trump had the benefit, while being utterly without merit, of at least being simple and easy for people to grasp.

Unfortunately for their proponents, these theories carry one very significant drawback: legal liability. …

The result: Many if not most of the high-profile purveyors of such claims have since backed off.