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Top Ten Security Stories of 2004: Page 9 of 12

Rather than relying of virus signatures to identify online threats as many products on the market do, zero-day offerings such as Cisco's Security Agent (CSA) analyze the behavior of servers and desktops. This means that if a PC suddenly starts sending out thousands of emails after being attacked by a virus, the application can then be closed.

Other vendors playing in this space include Platform Logic, Computer Associates International Inc. (CA) (NYSE: CA), and Sana Security, although more and more startups are getting involved (see Is Zero Day a Cash Cow?).

The market for these products is turning into an arms race, with vendors increasingly looking to add new capabilities.

2. Who Are You? – Identity Management Heats Up

As enterprise IT systems become increasingly complex, handling who gets access to what is becoming a major headache. But it is also big business. Computer Associates International Inc. (CA)'s (NYSE: CA) decision to shell out $430 million on security specialist Netegrity prompted a flurry of activity from rival vendors keen to get a share of the action (see CA Nets Netegrity for $430M).