A company doing business on the Internet sends mail daily. A spammer or zombie may wake up once a month and disappear again. Normal mail senders don't do that. Without knowing what the message said, you can assign reputations looking at the relationships between senders. |
Many spammers are reinventing themselves. |
Our system monitors global e-mail traffic ... to figure out who the good guys are and who the bad guys are. |
They have defenses for things coming in the front door, but nobody is looking at what's going out the back door. |
Very few supercomputers on Earth have that sort of power. What sort of problems could you apply that threat to? We deal in DoS attacks from thousands of PCs - but millions? Most risk models today assume a finite capability for the adversary, but this completely changes that. |