 In 2017, Koum began posting messages on Facebook in support of U.S. President Donald Trump.In September 2017, he wrote on Facebook, "as somebody who grew up in Soviet Union, Donald Trump couldn't be more right about failures of socialism...".In November 2014, Koum donated one million dollars to The FreeBSD Foundation, and close to $556 million to the Silicon Valley Community Foundation (SVCF) the same year.