The victims of some of the most pernicious conspiracy theories of 2020 are fighting back in court.

Voting equipment companies have filed a series of massive defamation lawsuits against allies of former President Trump in an effort to exert accountability over falsehoods about the companies' role in the election and repair damage to their brands.

On Friday, Fox News became the latest target and was served with a $1.6 billion defamation lawsuit by Denver-based Dominion Voting Systems after several of the network's hosts entertained on air conspiracy theories pushed by former President Trump that the company had rigged the results of the November election against him in key states.

"Fox sold a false story of election fraud in order to serve its own commercial purposes, severely injuring Dominion in the process," according to the lawsuit filed Friday in Delaware. (In a statement Friday, the network said the lawsuit was "baseless" and that the company planned to vigorously fight it in court.)

Dominion has also sued Trump associates Rudy Giuliani, Sidney Powell and Mike Lindell for billions in damages. The company is one of the top providers of voting equipment to states and counties around the country and typically relies on procurement decisions made by elected officials from both political parties.