I’ve been on both the customer and vendor side of these kinds of things. It’s easy to see this happening in my experience. Customers usually want their vendors

I’ve been on both the customer and vendor side of these kinds of things. It’s easy to see this happening in my experience. Customers usually want their vendors to be competitive, because that’s better for them and lowering prices. Also, some people at certain customers have their favorite vendors for whatever reasons. (Sometimes it’s just history, sometimes it because some vendor spends a lot of money taking key players out getting them drunk and making friends with them, etc.). So this leads to information from Vendor A frequently finding its way to Vendor B via the customer. Vendors know this. Sending actual source code seems a little next level from the usual sharing of specs, roadmaps, decks, etc. that happens every day. But it’s not at all unrealistic somebody did that to me.