Skip navigation

Stonesoft patents ‘An intrusion detection method and system’

READING,UK – August 29th, 2007 – Stonesoft, an innovative provider of integrated network security and business continuity solutions, has developed and patented a new technique for detecting attacks and exploits against previously unknown vulnerabilities.
Generally, fingerprint-based network IDS/IPS detects buffer overflow (bof) attacks by identifying known attack code from the network traffic. This often requires large fingerprints. Moreover, the high number of different vulnerability exploits results in a high number of fingerprints.

Stonesoft has patented a method for performing the recognition using a much smaller piece of information - a part of a specific pointer that has to be included in a bof attack code as the basis for the fingerprint. By also taking into account the context of the fingerprint match, it is possible to identify bof attacks in a relatively reliable way.

The patented invention provides two main advantages: improved performance due to the smaller size and number of fingerprints to be matched with the network traffic; and more importantly, the ability to detect new exploits and attacks against previously unknown vulnerabilities without knowing the exact attack code.

The patent is called ‘An intrusion detection method and system’ and was officially granted European patent number: 1271283 on 23.5.2007

“Stonesoft´s StoneGate solution has already received a number of patents to date, both in the US and in Europe. With this patent, Stonesoft further establishes its position as a forward-thinking and innovative company in the information flow security industry,” said Ilkka Hiidenheimo, Chief Executive Officer of Stonesoft.

About Stonesoft Corporation
Stonesoft Corporation (OMX: SFT1V) is an innovative provider of integrated network security solutions to secure the information flow of distributed organizations. Stonesoft customers include enterprises with growing business needs requiring advanced network security and always-on business connectivity.

StoneGate™ secure connectivity solution unifies firewall, VPN, IPS and SSL VPN blending network security, end-to-end availability and award-winning load balancing into a unified and centrally managed system. The key benefits of StoneGate secure connectivity solution include low TCO, excellent price-performance ratio and high ROI.

StoneGate Management Center provides unified management for StoneGate Firewall with VPN, IPS and SSL VPN. StoneGate Firewall and IPS work together to provide intelligent defence all over the enterprise network while StoneGate SSL VPN provides enhanced security for mobile and remote use.

Founded in 1990, Stonesoft Corporation is a global company with corporate headquarters in Helsinki, Finland and Americas headquarters in Atlanta, Georgia. For more information, visit

For more information please contact :
Elissa Fry - Prompt Communications on behalf of Stonesoft
Tel: 020 8996 1646 / Out of hours: 07905 737077

This press release was distributed by ResponseSource Press Release Wire on behalf of Prompt Communications Ltd in the following categories: Consumer Technology, Computing & Telecoms, for more information visit