Terms of Service
Effective Date: February 27, 2026
These Terms of Service (“Terms”) constitute a legally binding agreement between you and Zenofex LLC (“Zenofex,” “we,” “us,” or “our”), a limited liability company, governing your access to and use of Fuzze.rs and any related APIs, tooling, and services (collectively, the “Service”). Please read these Terms carefully.
1. Acceptance of Terms
By registering for, accessing, or using the Service in any manner, you represent that you have read, understood, and agree to be bound by these Terms and our Privacy Policy, which is incorporated herein by reference. If you are accepting these Terms on behalf of a company or other legal entity, you represent that you have the authority to bind that entity.
If you do not agree to these Terms, you must immediately cease all use of the Service. Your continued use of the Service after any modification to these Terms constitutes your acceptance of the modified Terms.
2. Description of Service
Fuzze.rs is a cloud-based software security platform that provides coverage-guided fuzz testing infrastructure (“fuzzing”), crash analysis, execution metrics, and related tooling to help security professionals and developers identify vulnerabilities in software they are authorized to test. The Service supports AFL++, libFuzzer, Centipede, and Honggfuzz, with additional fuzzing frameworks planned.
The Service is provided on a subscription basis. Features, limits, and pricing are described on our pricing page and may be updated from time to time with notice.
3. Eligibility and Account Registration
3.1 Eligibility
You must be at least 18 years of age and capable of forming a binding contract to use the Service. The Service is intended for use by security professionals, software developers, and organizations engaged in authorized security testing and vulnerability research. By using the Service, you represent and warrant that you meet these requirements.
3.2 Account Security
You are responsible for maintaining the confidentiality of your account credentials, including your API keys. You are responsible for all activities that occur under your account. You must notify us immediately at [email protected] if you suspect any unauthorized use of your account.
3.3 Accurate Information
You agree to provide accurate, current, and complete information when registering and to keep your account information updated. We reserve the right to suspend or terminate accounts with inaccurate registration information.
4. Acceptable Use and Authorization Requirement
THIS SECTION IS CRITICAL. PLEASE READ IT CAREFULLY.
4.1 Authorization Requirement
You may only use the Service to test software, systems, or targets for which you have explicit, documented authorization. This includes: (a) software you own or have developed; (b) systems owned by your employer or client, where you have written authorization to perform security testing; or (c) open-source projects explicitly permitting security research.
You must not use the Service to test any system, application, network, or target without prior explicit written authorization from the owner of that system. Unauthorized testing may violate the Computer Fraud and Abuse Act (18 U.S.C. § 1030), the Electronic Communications Privacy Act, and equivalent laws in other jurisdictions, and may expose you to criminal and civil liability.
4.2 Prohibited Conduct
You agree not to:
- Use the Service for unauthorized access to or testing of any third-party system;
- Upload malware, ransomware, or code designed to cause damage to third-party systems;
- Use the Service to develop offensive weaponized exploits intended for unauthorized use;
- Circumvent, disable, or interfere with security features of the Service;
- Attempt to reverse-engineer, decompile, or extract the source code of the Service;
- Resell, sublicense, or otherwise commercialize access to the Service without authorization;
- Use the Service in violation of any applicable law or regulation, including export control laws;
- Submit binaries or code that violate the intellectual property rights of any third party;
- Use the Service in connection with any activity that is illegal, fraudulent, or harmful;
- Attempt to probe, scan, or test the vulnerability of our own infrastructure or systems.
4.3 Security Research
Legitimate security research, bug bounty activities, and penetration testing conducted on systems for which you have written authorization are permitted and encouraged. We support the security research community. However, the authorization requirement in Section 4.1 applies without exception.
4.4 Export Controls
You acknowledge that the Service and related technology may be subject to U.S. export control laws and regulations, including the Export Administration Regulations (EAR). You represent that you are not located in, and will not use the Service from, any country subject to a U.S. government embargo, and that you are not on any U.S. government restricted-party list.
5. User Content and Submitted Materials
5.1 Your Content
“User Content” means any binaries, executables, seed corpora, source code, scripts, and other materials you submit to the Service. You retain all ownership rights in your User Content.
5.2 License Grant
By submitting User Content to the Service, you grant Zenofex a limited, non-exclusive, non-transferable license to process, store, and use your User Content solely for the purpose of providing the Service to you. We will not use your User Content for any other purpose without your express consent.
5.3 Content Responsibility
You are solely responsible for all User Content you submit. You represent and warrant that you have all rights necessary to submit such content, and that doing so does not violate these Terms, any applicable law, or the rights of any third party. You acknowledge that crash reports, coverage data, and execution metrics generated from your fuzzing jobs (“Results”) belong to you.
5.4 No Code Review
Zenofex does not actively monitor or review User Content submitted for fuzzing. However, we reserve the right to investigate and take action if we have reason to believe User Content violates these Terms or applicable law.
6. Confidentiality
Each party agrees to keep confidential the other party's Confidential Information and to use it only in connection with the Service. “Confidential Information” includes your User Content, Results, API keys, and any non-public information designated as confidential.
Zenofex will not disclose your User Content or Results to any third party except: (a) as required by law or valid legal process; (b) with your express consent; or (c) as necessary to operate and secure the Service. We will notify you promptly of any legal process requiring disclosure of your Confidential Information, to the extent permitted by law.
For customers requiring formal non-disclosure agreements (NDA or MNDA), please contact us at [email protected].
7. Subscriptions, Billing, and Cancellation
7.1 Subscription Plans
The Service is offered on a monthly subscription basis. Current plan details, pricing, and included resource limits are described on our pricing page. Zenofex reserves the right to modify pricing with at least 30 days' notice to existing subscribers.
7.2 Automatic Renewal
Subscriptions automatically renew at the end of each billing period unless canceled before the renewal date. By subscribing, you authorize Zenofex to charge your payment method on a recurring basis until you cancel.
7.3 Payment Processing
Payment is processed by Stripe, Inc. By providing payment information, you represent that you are authorized to use the payment method and authorize us (through Stripe) to charge the applicable fees. All fees are in U.S. dollars and are exclusive of any applicable taxes, which are your responsibility.
7.4 Cancellation
You may cancel your subscription at any time through your account billing page. Cancellation takes effect at the end of your current billing period. You will retain access to the Service through the end of the paid period.
7.5 Refunds
Except as required by applicable law or at our sole discretion, all fees are non-refundable. We do not provide pro-rated refunds for unused portions of a billing period. If you believe a charge was made in error, contact us within 30 days at [email protected].
7.6 Suspension for Non-Payment
We reserve the right to suspend or terminate your access to the Service if any payment is overdue or a charge is disputed without legitimate basis. We will endeavor to provide notice before suspension when practicable.
8. Intellectual Property
8.1 Zenofex IP
The Service, including all software, infrastructure, algorithms, interfaces, documentation, and underlying technology, is the exclusive property of Zenofex and its licensors, protected by copyright, trade secret, and other intellectual property laws. Nothing in these Terms grants you any rights in the Service except the limited right to use it in accordance with these Terms.
8.2 Feedback
If you provide suggestions, feedback, or ideas about the Service (“Feedback”), you grant Zenofex a perpetual, irrevocable, royalty-free, worldwide license to use such Feedback without restriction or attribution. You waive any moral rights in such Feedback.
9. Disclaimers and No Security Guarantee
THE SERVICE IS PROVIDED “AS IS” AND “AS AVAILABLE” WITHOUT WARRANTY OF ANY KIND.
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, ZENOFEX EXPRESSLY DISCLAIMS ALL WARRANTIES, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, AND ANY WARRANTIES ARISING OUT OF COURSE OF DEALING OR USAGE OF TRADE.
No Security Guarantee: Fuzzing is a probabilistic technique. Zenofex makes no representation or warranty that the Service will identify all vulnerabilities, bugs, or security issues in any software. The absence of findings from a fuzzing job does not imply that the tested software is free from vulnerabilities. You are solely responsible for your security posture and any decisions you make based on Results from the Service.
Zenofex does not warrant that the Service will be uninterrupted, error-free, or secure, or that any errors will be corrected.
10. Limitation of Liability
This section limits Zenofex's liability. Please read it carefully.
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL ZENOFEX, ITS MEMBERS, OFFICERS, EMPLOYEES, AGENTS, LICENSORS, OR SERVICE PROVIDERS BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES, INCLUDING LOSS OF PROFITS, DATA, GOODWILL, BUSINESS, OR OTHER INTANGIBLE LOSSES, ARISING OUT OF OR RELATING TO YOUR USE OF OR INABILITY TO USE THE SERVICE, REGARDLESS OF THE THEORY OF LIABILITY (CONTRACT, TORT, NEGLIGENCE, STRICT LIABILITY, OR OTHERWISE) AND EVEN IF ZENOFEX HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
IN NO EVENT WILL ZENOFEX'S TOTAL CUMULATIVE LIABILITY TO YOU FOR ALL CLAIMS ARISING OUT OF OR RELATING TO THESE TERMS OR YOUR USE OF THE SERVICE EXCEED THE GREATER OF: (A) THE TOTAL FEES PAID BY YOU TO ZENOFEX IN THE TWELVE (12) MONTHS IMMEDIATELY PRECEDING THE CLAIM; OR (B) ONE HUNDRED U.S. DOLLARS ($100).
SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OR LIMITATION OF CERTAIN DAMAGES. IN SUCH JURISDICTIONS, ZENOFEX'S LIABILITY SHALL BE LIMITED TO THE GREATEST EXTENT PERMITTED BY APPLICABLE LAW.
11. Indemnification
You agree to defend, indemnify, and hold harmless Zenofex LLC, its members, managers, officers, employees, contractors, licensors, and agents from and against any and all claims, damages, obligations, losses, liabilities, costs, and expenses (including reasonable attorneys' fees) arising from or relating to:
- Your use of, or inability to use, the Service;
- Your User Content or Results;
- Your violation of these Terms;
- Your violation of any applicable law, rule, or regulation;
- Your violation of the rights of any third party, including intellectual property, privacy, or authorization requirements;
- Any unauthorized testing or security research conducted using the Service;
- Any claim that your User Content caused damage to a third party.
Zenofex reserves the right to assume exclusive control of any matter subject to indemnification by you, at your expense. You will not settle any claim without Zenofex's prior written consent.
12. Termination
12.1 Termination by You
You may terminate your account at any time by canceling your subscription and ceasing all use of the Service. Termination does not entitle you to a refund of any prepaid fees.
12.2 Termination by Zenofex
We may suspend or terminate your account and access to the Service immediately, without notice or liability, if: (a) you breach any provision of these Terms; (b) we are required to do so by law; (c) we reasonably believe your use poses a security risk or legal liability to Zenofex or third parties; or (d) we decide to discontinue the Service.
12.3 Effect of Termination
Upon termination, your right to access the Service immediately ceases. Sections 4 (Acceptable Use), 5 (User Content), 6 (Confidentiality), 8 (IP), 9 (Disclaimers), 10 (Limitation of Liability), 11 (Indemnification), 13 (Governing Law), and 14 (Dispute Resolution) survive termination.
Zenofex may retain User Content and Results for up to 90 days following termination to allow for data export requests, after which they may be permanently deleted.
13. Governing Law
These Terms shall be governed by and construed in accordance with the laws of the State of Delaware, United States, without regard to its conflict of law provisions. The United Nations Convention on Contracts for the International Sale of Goods does not apply to these Terms.
14. Dispute Resolution
14.1 Informal Resolution
Before filing any formal legal action, you agree to attempt to resolve any dispute informally by contacting us at [email protected]. We will attempt to resolve the dispute within 30 days. If we cannot resolve the dispute informally, either party may pursue formal remedies.
14.2 Arbitration
Any dispute, claim, or controversy arising out of or relating to these Terms or the Service that cannot be resolved informally shall be resolved by binding arbitration administered by the American Arbitration Association (AAA) under its Commercial Arbitration Rules, except that either party may seek injunctive or other equitable relief in any court of competent jurisdiction to protect intellectual property or confidential information.
14.3 Class Action Waiver
YOU AND ZENOFEX AGREE THAT EACH MAY BRING CLAIMS AGAINST THE OTHER ONLY IN YOUR OR ITS INDIVIDUAL CAPACITY, AND NOT AS A PLAINTIFF OR CLASS MEMBER IN ANY PURPORTED CLASS OR REPRESENTATIVE PROCEEDING.
14.4 Venue
For any matters not subject to arbitration, you consent to the exclusive jurisdiction and venue of the state and federal courts located in Delaware.
15. General Provisions
15.1 Entire Agreement
These Terms, together with the Privacy Policy and any order forms or subscription agreements, constitute the entire agreement between you and Zenofex with respect to the Service and supersede all prior agreements and understandings.
15.2 Modifications
We reserve the right to modify these Terms at any time. We will provide notice of material changes by email or prominent notice on the Service at least 14 days before the changes take effect. Your continued use of the Service after the effective date constitutes acceptance of the modified Terms.
15.3 Severability
If any provision of these Terms is held to be invalid or unenforceable, the remaining provisions will continue in full force and effect, and the invalid provision will be modified to the minimum extent necessary to make it valid and enforceable.
15.4 Waiver
Zenofex's failure to enforce any right or provision of these Terms will not be deemed a waiver of such right or provision. Any waiver must be in writing and signed by an authorized representative of Zenofex.
15.5 Assignment
You may not assign or transfer your rights or obligations under these Terms without Zenofex's prior written consent. Zenofex may assign these Terms in connection with a merger, acquisition, or sale of all or substantially all of its assets.
15.6 Force Majeure
Zenofex shall not be liable for any failure or delay in performance due to circumstances beyond its reasonable control, including acts of God, natural disasters, pandemic, war, terrorism, labor disputes, governmental actions, internet or infrastructure outages, or third-party service failures.
15.7 No Third-Party Beneficiaries
These Terms are for the sole benefit of you and Zenofex and do not create any third-party beneficiary rights.
16. Contact Information
If you have any questions about these Terms, please contact us:
Zenofex LLC
Legal inquiries: [email protected]
Billing inquiries: [email protected]
Security issues: [email protected]
General support: [email protected]