How are HD prints out before they hit OTT

There’s a new movie that released recently. The HD print with English subtitles is out and it didn’t hit Netflix yet. Wont mention the name for obvious reasons.

Who is leaking the prints and why is this always happening ? In the old days camera prints were rampant but now HD prints r out so fast.

Why haven’t producers and cybercrime dealt with this. Even the teaser and trailer leaks happen (remember bahubali 2)