We know McCabe had transcript. Likely came through FBI channels.
Worth noting that NSA Dir Rogers & Presiding FISC Judge Collyer worked for months - and still could not identify all the channels of access into NSA data.
"The government still had not ascertained the full range of systems that might have been used to conduct improper U.S.-person queries."
themarketswork.com/2018/04/05/the…
Time and again, the Court Ruling singled out the FBI for targeted reprimand.