QuoteThe company developed the technology in response to new tactics used by spammers. Specifically, spammers have been inserting links into e-mails instead embedding the spam message in the e-mail. As a result, traditional spam filters that scan the content of e-mail messages can't filter the unwanted messages. Cisco is the world's leader in networking equipment that shuttles Internet Protocol communications traffic around a corporate environment. Through several acquisitions, the company has also built a strong security portfolio. The IronPort acquisition is significant for Cisco mainly because it expands Cisco's security expertise beyond the network and allows it to offer products that also filter actual communications. This is especially important as new security threats emerge from a growing volume of spam.