What is being done to the man is wrong! Wrong is wrong. It doesn’t matter who it is being done to.
I don’t know what exactly was done to him but it does appear private conversations were taped without permission and disseminated. Whatever the laws are around that, everyone deserves the right to privacy. However, there are limits.
What if the man was on his balcony and his neighbor heard it all and taped it? I honestly don’t know the details of how this tape was made.
But yeah, if he were tricked, that is illegal.