I work for a firm that would be an obvious candidate for this, to the point where I likely would have been the person for them to email to sell this service to.

I work for a firm that would be an obvious candidate for this, to the point where I likely would have been the person for them to email to sell this service to. Yet, this is the first I'm hearing of it. It makes me wonder if there was some kind of intent, or if it was offered on an 'if they ask about it' basis. With the way trading arbitrage matters down to the nanosecond, depending on the exact type of connections they allowed this for and for how long, millions of dollars could have moved from some firms to others. There's no real way to know the scale of the impact.