I agree. Every work email address I've ever had has been a part of at least one breach according to haveibeenpwned. None of them are specific to the companies

I agree. Every work email address I've ever had has been a part of at least one breach according to haveibeenpwned. None of them are specific to the companies I've worked for. If they count things like the Exactis breach, they'll likely pick up every company that existed prior to that breach.