AppShield explained

AppShield was an early Web application Firewall.^[1] AppShield was conceptualized by Eran Reshef and Gili Raanan and was introduced to the market by Perfecto Technologies (now Sanctum) in the summer of 1999.^[2] AppShield worked by inspecting incoming HTTP requests and blocking malicious attacks based on a dynamic policy which was composed by analyzing the outgoing HTML pages.^{[3] [4] [5]} A 2002 ZDNet article noted that in the three years following its launch, it had been used by 60 Fortune 100 companies.^[6]

Watchfire acquired Sanctum in 2004, and subsequently sold the intellectual property for AppShield to F5 Networks, which discontinued the product in favor of its competing TrafficShield product.^[7]

Notes and References

1. Web site: Sanctum's AppShield . 2024-10-05 . Network World . en.
2. Web site: 27 August 1999 . Perfecto Technologies Delivers AppShield for E-Business - InternetNews. . https://web.archive.org/web/20160421003828/https://www.internetnews.com/ec-news/article.php/190571/Perfecto+Technologies+Delivers+AppShield+for+EBusiness.htm . 2016-04-21 . 2016-09-12 . www.internetnews.com.
3. Web site: CNN - New tool blocks wily e-comm hacker tricks - September 7, 1999. Messmer. Ellen. www.cnn.com. 2016-09-12. https://web.archive.org/web/20000411105516/http://www.cnn.com/TECH/computing/9909/07/ecomm.hack.idg/index.html. April 11, 2000.
4. Web site: 2002-12-31. Method and system for dynamic refinement of security policies. Google Patents.
5. Web site: 1999-07-01. Method and system for extracting application protocol characteristics. Google Patents.
6. Web site: You need more than a firewall to stop hackers . 2024-10-05 . ZDNET . en.
7. Web site: Game Over? - Information Security Magazine . https://web.archive.org/web/20141215135829/http://searchsecurity.techtarget.com:80/magazineContent/Game-Over . 2014-12-15 . 2016-09-12 . en-US.