" The number of households affected by the attack on JPMorgan [76 million households and 7 million small businesses] compares with the 145 million personal records taken earlier this year in a breach of EBay Inc. and last year’s attack on retailer Target Corp., which affected 110 million. "

Do 'responsive firewalls' exist, that would close a hacked connection just because of the size of the data that is flowing out?

[I have often thought a firewall would be a good golang project]