1. Acceptance of Terms

By accessing the Network Telescope website (the "Site"), retrieving any content published thereunder, or engaging Network Telescope ("we", "us", "our", or the "Firm") for any service, you ("you" or the "Client") acknowledge that you have read, understood, and agree to be bound by these Terms of Service (the "Terms"). If you do not agree, you must not use the Site, request services, or transmit information to the Firm.

These Terms constitute a legally binding agreement between you and Network Telescope. Where you accept these Terms on behalf of an organization, you represent and warrant that you have the actual authority to bind that organization and that the organization is bound to the same extent as if it had executed these Terms directly.

2. Definitions

For the purposes of these Terms, the following capitalised terms have the meanings ascribed below:

• "Affiliate" means any entity that directly or indirectly controls, is controlled by, or is under common control with a party.
• "Confidential Information" means any non-public information disclosed by one party to the other in connection with these Terms or any engagement, whether oral, written, or electronic, that is marked as confidential or that a reasonable person would understand to be confidential.
• "Deliverable" means any report, dataset, advisory, briefing, code, or other tangible work product produced by the Firm under a Statement of Work.
• "Personal Data" has the meaning ascribed to it under applicable data protection law.
• "Public-Internet Reconnaissance" means non-intrusive, non-authenticated observation of information voluntarily exposed by hosts on the public internet, as further described in our Transparency disclosures.
• "Statement of Work" or "SOW" means a separately executed written agreement specifying the scope, schedule, fees, and deliverables of a particular engagement.

3. Services

Network Telescope provides internet-scale reconnaissance, threat intelligence, attack-surface analysis, longitudinal measurement, penetration testing, incident response support, and related research and advisory services on a contracted basis. The specific scope, methodology, deliverables, schedule, acceptance criteria, and fees applicable to any particular engagement shall be set forth in an executed SOW between the Firm and the Client. In the event of any conflict between these Terms and an executed SOW, the SOW shall control with respect to the engagement it governs.

Nothing in these Terms or on the Site constitutes an offer to provide services, a quotation, or a binding proposal. Engagement proposals are valid only when communicated in writing by an authorised representative of the Firm and accepted in writing by the Client.

4. Eligibility and Authorisation

The Client warrants and represents that (a) it is duly organised and validly existing under the laws of its jurisdiction of formation; (b) the execution and performance of any SOW is within its corporate or organisational power; (c) it is legally authorised to commission the requested work; and (d) it has obtained, or shall obtain prior to the commencement of work, all necessary authorisations, consents, and approvals from any third party whose systems, networks, data, or personnel fall within the scope of the engagement.

The Firm does not perform intrusive testing, simulated attack, or any activity that would constitute unauthorised access against systems, networks, or data for which it does not have written authorisation from the legal owner or controller thereof. The Firm reserves the right, in its sole discretion, to decline or suspend any engagement where authorisation is incomplete, ambiguous, or revoked.

5. Engagement Scope and Change Control

Each engagement is bounded by the scope expressly set forth in the applicable SOW. Material changes to scope, schedule, or fees shall be effected only by a written amendment signed by authorised representatives of both parties. Verbal requests, informal correspondence, and inferred expansions of scope shall not be binding on either party.

6. Public-Internet Reconnaissance, Probe Attribution, and Opt-Out

Public-Internet Reconnaissance performed by the Firm is non-intrusive, non-authenticated, and limited to data voluntarily exposed by hosts on the public internet. All probes are attributable in accordance with RFC 9511 (Attribution of Internet Probes), including the publication of a disclosure descriptor at /.well-known/probing.txt on each probing host and a canonical copy on this domain over HTTPS. Network operators may request global exclusion from active scanning at any time, free of charge, in accordance with the procedure published on our Transparency page.

The Firm operates additional voluntary measures to minimise cross-research noise, including the continuous ingestion of the abuse.ch SinkDB list and the pre-emptive exclusion of address space, autonomous system numbers, and domains belonging to academic, governmental, military, and other sensitive constituencies. These measures are operated at the Firm's discretion and do not create any contractual entitlement on the part of any third party.

7. Confidentiality and Non-Disclosure

All engagement-specific communications, scopes, methodologies, raw collection data, intermediate analysis, and Deliverables are Confidential Information and subject to mutual non-disclosure. Each party shall (a) use Confidential Information solely for the purposes contemplated by these Terms or the applicable SOW; (b) protect Confidential Information using no less than a reasonable standard of care; and (c) limit disclosure to personnel and contractors who have a need to know and who are bound by confidentiality obligations no less protective than those set forth herein.

The Firm shall not disclose Client identities, engagement details, or proprietary methodology except (i) as required by law or by valid legal process issued by a court of competent jurisdiction; (ii) as necessary to defend the Firm in litigation or regulatory proceedings; or (iii) with the Client's prior written consent. Confidentiality obligations shall survive termination of these Terms or any SOW for a period of five (5) years, or such longer period as may be required by applicable law or by the nature of the information.

8. Intellectual Property

All tools, infrastructure, datasets, taxonomies, indicators of compromise, software, models, and methodology developed, owned, licensed, or otherwise controlled by the Firm prior to or independently of any engagement (the "Firm IP") remain the exclusive property of the Firm. No transfer of ownership in Firm IP is effected by these Terms, by any SOW, or by the delivery of any Deliverable.

Subject to the Client's payment of all fees due under the applicable SOW, the Firm grants the Client a non-exclusive, non-transferable, non-sublicensable licence to use the Deliverables for the Client's internal business purposes, in perpetuity unless otherwise specified in the SOW. The Firm reserves the right to retain and use de-identified, aggregated insights derived from engagements to improve its services, provided that no Client Confidential Information is disclosed thereby.

9. Warranties and Disclaimers

The Firm warrants that services will be performed in a professional and workmanlike manner consistent with prevailing industry standards. The Site and any informational content made available thereunder are provided "AS IS" and "AS AVAILABLE", without warranty of any kind, whether express, implied, statutory, or otherwise, including without limitation any implied warranties of merchantability, fitness for a particular purpose, non-infringement, or accuracy.

The Firm does not warrant that the Site will be uninterrupted, error-free, or free of harmful components, nor that any informational content is current, complete, or suitable for any particular purpose. Reliance on any Site content is at your sole risk.

10. Limitation of Liability

To the maximum extent permitted by applicable law, the Firm's aggregate liability arising out of or relating to these Terms, the Site, or any engagement shall not exceed the fees actually paid by the Client to the Firm under the SOW giving rise to the claim during the twelve (12) months immediately preceding the event giving rise to liability. In no event shall the Firm be liable for any indirect, incidental, special, consequential, exemplary, or punitive damages, or for any loss of profits, revenue, data, business opportunity, or goodwill, regardless of the form of action and whether or not the Firm was advised of the possibility of such damages.

11. Indemnification

The Client shall defend, indemnify, and hold harmless the Firm and its officers, directors, employees, contractors, and Affiliates from and against any and all third-party claims, losses, damages, liabilities, costs, and expenses (including reasonable attorneys' fees) arising out of or relating to (a) the Client's breach of these Terms or any SOW; (b) the Client's misrepresentation of authorisation under Section 4; (c) the Client's misuse of any Deliverable; or (d) the Client's violation of applicable law.

12. Acceptable Use of the Site

You agree not to (a) attempt to interfere with, disrupt, exploit, reverse engineer, or otherwise abuse the Site or any associated infrastructure; (b) probe, scan, or test the vulnerability of the Site without prior written authorisation from the Firm; (c) circumvent any security or rate-limiting mechanism of the Site; (d) use the Site to transmit malware, spam, or other unlawful content; or (e) collect personal data, scrape content at scale, or otherwise misuse the Site in violation of applicable law. The Firm reserves the right to investigate suspected violations and to refer matters to law enforcement.

13. Compliance with Law, Export Controls, and Sanctions

Each party shall comply with all applicable laws, regulations, and governmental orders in connection with these Terms and any engagement, including without limitation export control laws, economic sanctions regimes, anti-corruption laws (including the U.S. Foreign Corrupt Practices Act and the U.K. Bribery Act), and applicable data protection law. The Client warrants that it is not, and is not owned or controlled by, any person or entity subject to applicable sanctions or trade restrictions, and that it shall not use any Deliverable in a manner that would cause the Firm to violate such laws.

14. Force Majeure

Neither party shall be liable for any delay or failure to perform its obligations under these Terms (other than payment obligations) to the extent caused by events beyond its reasonable control, including without limitation acts of God, war, terrorism, civil unrest, governmental action, labour disputes, natural disasters, pandemic, fire, flood, or failure of public utilities, telecommunications, or upstream service providers.

15. Term and Termination

These Terms remain in effect until terminated. Either party may terminate an engagement in accordance with the termination provisions of the applicable SOW. The Firm may suspend or terminate your access to the Site at any time, with or without cause, with or without notice. Sections 7 (Confidentiality), 8 (Intellectual Property), 10 (Limitation of Liability), 11 (Indemnification), 16 (Survival), 21 (Governing Law), and any other provision that by its nature should survive shall continue in effect notwithstanding any termination.

16. Survival

Provisions of these Terms which by their nature are intended to survive termination shall so survive.

17. Assignment

You may not assign, delegate, or otherwise transfer these Terms or any rights or obligations hereunder, in whole or in part, without the prior written consent of the Firm. Any purported assignment in violation of this section is void. The Firm may assign these Terms in whole or in part, including in connection with a merger, acquisition, reorganisation, or sale of substantially all of its assets, without consent.

18. Independent Contractors

The parties are independent contractors. Nothing in these Terms or any SOW shall be construed to create a partnership, joint venture, employment, agency, or fiduciary relationship between the parties. Neither party shall have the authority to bind the other except as expressly set forth herein.

19. Severability and Waiver

If any provision of these Terms is held to be invalid, illegal, or unenforceable by a court of competent jurisdiction, the remaining provisions shall continue in full force and effect, and the invalid provision shall be deemed modified to the minimum extent necessary to render it enforceable while preserving the parties' original intent. No waiver of any provision shall be effective unless made in writing and signed by the waiving party. No waiver of any breach shall constitute a waiver of any subsequent breach.

20. Notices

All notices required or permitted under these Terms shall be in writing and shall be delivered by email to the addresses of record, with confirmation of receipt. The Firm's notice address is contact@networktelescope.com. The Client's notice address is the email designated in the applicable SOW or, if none, the email used to engage the Firm.

21. Governing Law and Jurisdiction

These Terms and any non-contractual obligations arising out of or in connection with them shall be governed by and construed in accordance with the laws of the jurisdiction in which Network Telescope is incorporated, without regard to its conflict-of-law principles. The parties irrevocably submit to the exclusive jurisdiction of the competent courts of that jurisdiction in respect of any dispute, controversy, or claim arising out of or in connection with these Terms.

22. Dispute Resolution

The parties shall use good-faith efforts to resolve any dispute through informal negotiation prior to commencing formal proceedings. If a dispute cannot be resolved within thirty (30) days of written notice, either party may pursue any available remedy, subject to the governing law and forum specified above. Nothing in this section shall prevent either party from seeking injunctive or equitable relief at any time to protect Confidential Information or intellectual property.

23. Entire Agreement

These Terms, together with any executed SOW, the Privacy Policy, and the Transparency disclosures incorporated by reference, constitute the entire agreement between the parties with respect to the subject matter hereof and supersede all prior or contemporaneous understandings, proposals, representations, and communications, whether written or oral. No modification to these Terms shall be binding unless made in writing and signed by an authorised representative of the Firm.

24. Changes to These Terms

The Firm may revise these Terms from time to time. Revisions take effect upon posting to the Site, and the "last updated" date above reflects the most recent revision. Continued use of the Site or continued engagement of the Firm after revisions are posted constitutes acceptance of the revised Terms. The Firm shall endeavour, but is not required, to provide advance notice of material changes.

25. Contact

Questions, notices, or correspondence regarding these Terms should be directed to contact@networktelescope.com.