https://en.wikipedia.org/wiki/Christopher_Steele

Christopher David Steele (born 24 June 1964) is a British former intelligence officer with the Secret Intelligence Service MI6 from 1987 until his retirement in 2009. He ran the Russia desk at MI6 headquarters in London between 2006 and 2009. In 2009 he co-founded Orbis Business Intelligence, a London-based private intelligence firm.

He authored a dossier that claims Russia collected a file of compromising information on U.S. President Donald Trump.^[2][3] The Trump administration and congressional Republicans have falsely claimed that U.S. intelligence community probes into Russian interference in the 2016 election were launched due to Steele's dossier.^[4]