As a senior, he recorded 32 receptions for an average of 16.3 yards per catch, 7 touchdowns, 48 tackles and 4 interceptions, while being selected to the Trinity League first-team defense.

[1] McFadden accepted a football scholarship from San Diego State University to play as a wide receiver, but was switched to cornerback.

As a true freshman, he started 6 games (including the first 5) out of 12, posting 26 tackles, one sack, one interception and 2 blocked extra points.

Against Southern Utah University, he blocked a kick and returned it after a lateral for a defensive extra point.

During his college career, he accumulated 188 tackles (13 for loss), 39 pass break ups, 8 interceptions (2 returned for touchdown), 3 sacks and one forced fumble.

[12] On November 5, after injuries to Morris Claiborne and Barry Church, the Cowboys were forced to promote him to the active roster.

On December 4, 2017, McFadden was signed by the Atlanta Falcons, to provide depth while Brian Poole recovered from a back injury.

[17] His father, Leon McFadden, was a shortstop and outfielder for the Houston Astros of Major League Baseball between 1968 and 1970.