Parler was among the social media services used to plan the storming of the U.S. Capitol on January 6, 2021. On January 5, the Secret Service warned the Capitol Police about an individual who intended to attend the rally and incite violence, and whose Parler posts included threats of violence against police. Mentions of "civil war" on Parler increased fourfold in the hours just prior to the storming. According to "BuzzFeed News", after the riot at the Capitol, Parler had been "overrun" with death threats, encouragement of violence, and calls for Trump supporters to join another armed march on Washington, D.C. on the day before the inauguration of Joe Biden. Activists, including Sleeping Giants, and employees of technology companies that had been providing services to Parler began to pressure those companies, which included Google, Apple, and Amazon, to deny service to Parler.