Don’t worry about it too much OP. Like others have said it’s only internal. I’ve had worse, the head of legal in my reason OUT my source of info when he gave me the heads up on some non-compliance shit went down.

I asked him why, he said it was a mistake bc he was undulated with emails at q’s end. But that didn’t stop him from flipping out on me and asking why I was interrogating him. I explained that the issue was I was more concerned about the colleague who passed the info onto me, and how he could be ostracized by the rest of sales and marketing.

GC later came to his senses and apologized to me. But it wasn’t about me, it’s about the ethical guy who shared intel and could potentially be hated by the rest of the company.

Hope the fallout from your case is minimal. Corporate espionage is common, don’t beat yourself up because it’s likely been leaked to competitors via ex-colleagues.