MLB Letter Confirms Yankees Used Technology for Sign Stealing - The New York Times

New York Yankees Letter on Sign Stealing Scandal Is Leaked - Sports Illustrated NY Yankees News, Analysis and More

Sign stealing in MLB isn't new

THEY CHEATED TOO: 'Yankee Letter' revealed, documents sign-stealing techniques and punishment from MLB

Reports: Yankees used dugout phone, replay room to steal signs in 2015-16

Houston Astros sign stealing scandal - Wikipedia

Yankees strike out in bid to keep sign-stealing letter sealed

Details emerge about Carlos Beltrán's role in the 2017 Astros clubhouse and the team's sign-stealing scheme - The Athletic

Commissioner's 2017 Letter to the Yankees on Sign Stealing - The New York Times

New York Daily News back pages 2020 – New York Daily News

Derek Jeter's Hall of Fame election was one vote short of unanimous. Thank goodness.