Trusted Information Systems
 |
|
| Public (Former Nasdaq symbol:TISX) | |
| Industry |
Computer software Computer security |
| Fate | Acquired by McAfee, later by SPARTA, Inc., which was acquired by Cobham, plc |
| Successor | McAfee |
| Founded | 1983 |
| Founder | Stephen T. Walker |
| Headquarters | Glenwood, Maryland, U.S. |
|
Area served
|
Worldwide |
| Products | Firewall Software, IPSec VPN, Trusted OS |
Trusted Information Systems (TIS) was a computer security research and development company during the 1980s and 1990s, performing computer and communications (information) security research for organizations such as NSA, DARPA, ARL, AFRL, SPAWAR, and others.
TIS was founded in 1983 by NSA veteran Steve Walker, and at various times employed notable information security experts including David Elliott Bell, Martha Branstad, John Pescatore, Marv Schaefer, Steve Crocker, Marcus Ranum, Wei Xu, John Williams, Steve Lipner and Carl Ellison. TIS was headquartered in Glenwood, Maryland, in a surprisingly rural location; the company was started in Walker's garage on Shady Lane in Glenwood, MD. As the company grew, rather than move to Baltimore or the Washington D.C. suburbs, a small office building was constructed on land next to Walker's new home on Route 97.
TIS projects included as the following:
TIS's operating system work directly affected BSD/OS, which the Gauntlet Firewall and IPSec was based on, as well as Linux, FreeBSD, HP UX, Sun OS, Darwin, and others.
The company went public in 1996 and soon afterwards attempted to acquire PGP Inc.; it was instead acquired in 1998 by Network Associates (NAI), which later became McAfee, who had already bought PGP Inc. in 1997. The security research organization became NAI Labs and the Gauntlet engineering and development organization was folded into Network Associates' engineering and development.
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