[nrao123]

I remember reading Silicon Valley company being frustrated with whatever emails they had sent on company policy being forwarded to journalists (Kara Swisher??) . One hack they came up with was to slightly reword every email slightly to identify who did it.

Maybe - this solution would help in figuring out who the leakers are!

[alcari]

That's a classic canary trap. [0]

[0] https://en.wikipedia.org/wiki/Canary_trap