IronPort
| Division | |
| Industry | Computer security |
| Fate | Acquired by Cisco Systems |
| Successor | Cisco Systems |
| Founded | 2000 |
| Defunct | 2007 |
| Headquarters | San Bruno, California, United States |
| Parent | Cisco Systems |
IronPort Systems, Inc., headquartered in San Bruno, California, was a company that designed and sold products and services that protect enterprises against internet threats.
IronPort was founded in December 2000, by Scott Banister and Scott Weiss. It was best known for IronPort AntiSpam, the SenderBase email reputation service, and email security appliances. These appliances ran a modified FreeBSD kernel under the trademark AsyncOS. On November 24, 2003, IronPort acquired the SpamCop filtering and reporting service, which it ran as a stand-alone entity.
Cisco Systems announced on January 4, 2007 that it would buy IronPort in a deal valued at US$830 million, and completed the acquisition on June 25, 2007. IronPort was integrated into the Cisco Security business unit. SenderBase was renamed SensorBase to take account of the input into this database that other Cisco devices provide. SensorBase allows these devices to build a risk profile on IP addresses, therefore allowing risk profiles to be dynamically created on sites and email sources.
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