IMPORTANT - READ CAREFULLY: This End User License Agreement ("EULA") is a legal agreement between you (either an individual or a single entity) and s4 Corporation ("s4") for the s4™ Security Suite software, including all associated media, documentation, and online or electronic services ("Software"). By installing, copying, or otherwise using the Software, you agree to be bound by the terms of this EULA. If you do not agree, do not install or use the Software.
Subject to your compliance with this EULA and payment of applicable fees, s4 grants you a limited, non-exclusive, non-transferable, revocable license to:
The Software is protected by copyright laws and international copyright treaties, as well as other intellectual property laws and treaties. s4 and its suppliers retain all right, title, and interest in and to the Software, including all copyrights, patents, trade secrets, trademarks, and other intellectual property rights.
Proprietary Technology: The Software includes proprietary technologies protected by patents (pending), including advanced certificate pinning, SNI-based routing, and unified license management systems. See Intellectual Property page for details.
Subscriptions automatically renew unless cancelled at least 24 hours before the renewal date. You can manage subscriptions at auth.s4.software.
s4 reserves the right to change pricing with 30 days notice. Existing subscribers maintain their current rate until renewal.
The 5-day trial period begins upon first activation. Trial licenses include full feature access but are limited to one device. No credit card required. Trial automatically expires after 5 days.
14-day money-back guarantee for all paid licenses. No refunds after 14 days or for Lifetime licenses after 30 days. See Refund Policy for details.
Your privacy is important. The Software collects minimal data necessary for license activation and operation. See our Privacy Policy for complete details.
The Software implements advanced certificate pinning to protect against man-in-the-middle attacks. Users must not attempt to intercept, modify, or bypass certificate validation. Doing so may result in license termination.
THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. s4 disclaims all warranties, express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, and non-infringement. s4 does not warrant that the Software will be error-free, uninterrupted, or free from viruses.
TO THE MAXIMUM EXTENT PERMITTED BY LAW, s4 SHALL NOT BE LIABLE FOR:
s4's total liability shall not exceed the amount you paid for the Software in the 12 months preceding the claim.
You may terminate this EULA at any time by uninstalling the Software and ceasing all use. Refunds subject to Refund Policy terms.
s4 may terminate this EULA immediately if you:
Upon termination, you must immediately cease using the Software and destroy all copies. Provisions regarding intellectual property, warranties, liability, and dispute resolution survive termination.
The Software may be subject to export control laws. You agree not to export or re-export the Software to countries subject to embargo or to persons on denied party lists. The Software uses encryption technology subject to U.S. Export Administration Regulations.
This EULA is governed by the laws of the State of Delaware, United States, without regard to conflict of law provisions.
Disputes shall be resolved through binding arbitration in accordance with the American Arbitration Association rules. Class action lawsuits are prohibited.
For matters not subject to arbitration, you consent to the exclusive jurisdiction of courts in Wilmington, Delaware.
s4 may modify this EULA with 30 days notice. Continued use after changes constitutes acceptance. Material changes will be communicated via email and in-app notification.
This EULA, together with the Privacy Policy and Terms of Service, constitutes the entire agreement between you and s4 regarding the Software and supersedes all prior agreements.
s4 Corporation
License Support: [email protected]
Legal Department: [email protected]
Customer Portal: auth.s4.software
By clicking "I Accept" or by installing the Software, you acknowledge that you have read, understood, and agree to be bound by this EULA.
s4™ Security Suite · Version 1.0 · October 29, 2025