This won’t go over well with the Yankees.

MLB’s lengthy probe into the Astros’ sign-stealing scandal revealed Monday that Houston illegally stole signs electronically not only during the 2017 regular season — as initially reported by The Athletic — but also during those playoffs, when the Astros defeated the Yankees in seven games in the ALCS, en route to winning the World Series over the Dodgers.

MLB also found the Astros continued cheating into the 2018 regular season, but not during the 2019 postseason, when Houston also defeated the Yankees in the ALCS.

Commissioner Rob Manfred suspended Astros manager AJ Hinch and GM Jeff Luhnow for one season, and Houston fired both shortly thereafter, as a result of the investigation. However, there are no plans to vacate the Astros’ World Series title, as many baseball fans on social media have clamored for.

The MLB previously warned teams not to electronically steal signs after the Red Sox were caught stealing signs using an Apple watch against the Yankees in September 2017.

That same season, then-Houston bench coach and current Red Sox manager Alex Cora “arranged for a video room technician to install a monitor displaying the center field camera feed immediately outside of the Astros’ dugout,” the report said.

The Astros used the center field camera stationed in their ballpark to steal pitchers’ signs and banged on trash cans to relay them, former Houston pitcher Mike Fiers told The Athletic in November. Houston won all four home games against the Yankees in the ’17 ALCS, but it is unclear how much the sign-stealing played a role in the Astros’ victory.

Cora has not yet been punished for his role in the scandal because the league currently is investigating the Red Sox’s possible use of electronics to steal signs. Mets manager Carlos Beltran won’t be disciplined, despite being the only Astros player named in Monday’s report as being among those who discussed how “the team could improve on decoding opposing teams’ signs and communicating the signs to the batter.”

This past postseason the Yankees were furious with the Astros, claiming members of the Houston dugout were whistling as a way to steal signs. Those accusations quickly were ruled by MLB to be unfounded.