 A study by Zignal Labs found that unsubstantiated claims of involvement by Soros were one of three dominant themes in misinformation and conspiracy theories around the 2020 George Floyd protests, alongside claims that Floyd's death had been faked and claims of involvement by antifa groups.The Anti-Defamation League estimated that over four days after Floyd's death, negative Twitter messages about Soros increased from about 20,000 per day to about 500,000 per day.A pipe bomb was placed in the mailbox at Soros's Katonah, New York home on October 22, 2018, as part of the October 2018 United States mail bombing attempts.