Tessera End User License Agreement

Version 1.4 — effective 2026-08-13

This End User License Agreement (“Agreement”) is a binding contract between you, or the organisation you represent (“Customer”, “you”), and Societatea cu Răspundere Limitată “Tessera Limited” (SRL Tessera Limited), a company registered in the Republic of Moldova under IDNO 1026023127260, with its registered office at str. Miorița 1/c, MD-2028, Chișinău, Republic of Moldova (“Tessera”, “we”), governing your use of the Tessera software: the Tessera Controller, the Tessera Desktop Client, the Tessera command-line client, and any accompanying documentation (together, the “Software”).

By installing, accessing or using the Software, or by clicking to accept this Agreement, you agree to be bound by it. If you do not agree, do not install or use the Software. If you accept on behalf of an organisation, you represent that you are authorised to bind it.

The Software is licensed to organisations for their internal business purposes and is not offered to consumers. By accepting this Agreement you confirm that you are acquiring the Software in the course of a business, trade, craft or profession and not as a consumer.

1. Licence grant

Subject to your compliance with this Agreement and payment of the applicable fees, Tessera grants you a non-exclusive, non-transferable, non-sublicensable licence, for the term of your subscription, to:

a. install and run the Controller on infrastructure you own or control; b. install and run the Desktop Client and command-line client on devices used by your Authorised Users; and c. use the Software solely for your internal business purposes.

“Authorised User” means an individual employee, contractor or agent of Customer whom Customer permits to use the Software, up to the number of seats in your subscription.

2. Editions, seats and licence keys

The Software is offered in editions (Community, Pro, Ultimate, Enterprise). Your edition determines the features and resource limits available to you and is enforced by a licence token issued by the Tessera customer portal.

You may not circumvent, disable, or tamper with the licence-verification mechanism, the seat count, or any feature gate, nor use a licence token issued to another organisation.

One licence, one deployment. A licence token entitles you to run the Software on the number of controller installations covered by your subscription. Copying a single token across additional installations to obtain seats or features you have not paid for is a breach of this Section, whether or not the token itself verifies correctly.

How we tell. A controller that can reach the internet reports to the portal, once a day, which licence it is running, a random identifier it generated on its own first installation, and its version. It sends nothing about your users, your systems, your sessions or your data — see the Privacy Policy, section 2. A controller on an isolated network cannot send this and is not expected to; nothing in the Software depends on the report, and blocking it does not affect your use. We use it only to see whether one licence is running in more places than it covers.

What we may do about it. If the reports show a licence in use beyond what you have paid for, we will contact you first and give you a reasonable opportunity to bring the deployment into line or buy what you are using — that is what we expect to happen, because the usual cause is a misunderstanding rather than bad faith. Where that fails, or where the circumvention is deliberate, we may revoke the affected licence tokens and decline to issue new ones, in addition to the remedies in Section 8. Revocation returns the Software to Community-edition limits; it does not delete your data or stop you accessing your own systems.

3. Restrictions

Except to the extent this restriction is prohibited by applicable law, you may not:

a. copy, modify, or create derivative works of the Software; b. distribute, sell, rent, lease, sublicense, or otherwise make the Software available to any third party, or use it to provide a service bureau or hosted offering to third parties; c. reverse engineer, decompile or disassemble the Software, or attempt to derive its source code; d. remove or obscure any proprietary notice, including the notices required by Section 10; e. publish benchmarks or security-test results without Tessera’s prior written consent, except where such consent may not lawfully be required; or f. use the Software in violation of applicable law.

4. Ownership

The Software is licensed, not sold. Tessera and its licensors retain all right, title and interest in and to the Software, including all intellectual property rights. No rights are granted other than those expressly stated in this Agreement.

5. Customer data and privacy

The Software runs on your infrastructure. Tessera does not receive your session content, audit logs, credentials, or the identities of your Authorised Users.

Where a Controller is connected to the Tessera customer portal for licence management, it transmits only the information necessary to obtain and validate the organisation’s entitlement. A Controller running an offline licence sends the daily report described in Section 2 if it can reach us, and nothing at all if it cannot. In both cases the Controller reports no internal-user data: not your Authorised Users, not the systems you connect to, not your sessions, commands or audit log.

6. Warranty disclaimer

To the maximum extent permitted by applicable law, the Software is provided “as is” and “as available”, without warranty or condition of any kind, whether express, implied or statutory. Tessera specifically disclaims all implied warranties and conditions of merchantability, satisfactory quality, fitness for a particular purpose, title and non-infringement, and any warranty that the Software will be uninterrupted, error-free or secure against every attack.

Customer acknowledges in particular that the read-only enforcement features are described in the documentation as best-effort controls for SSH command filtering, and are not represented as an unbypassable security boundary. Customer is responsible for evaluating whether the Software is appropriate for its environment and for maintaining its own backups, monitoring and incident response.

No advice or information, whether oral or written, obtained from Tessera creates any warranty not expressly stated in this Agreement.

7. Limitation of liability

Neither party is liable for any indirect, incidental, special, consequential, exemplary or punitive damages, or for any loss of profits, revenue, goodwill, business opportunity, data or anticipated savings, however caused and on any theory of liability, even if advised of the possibility of such damages.

Each party’s total aggregate liability arising out of or in connection with this Agreement is limited to the total fees paid or payable by Customer for the Software in the twelve (12) months immediately preceding the event giving rise to the claim.

Nothing in this Agreement excludes or limits either party’s liability for death or personal injury caused by negligence, for fraud or fraudulent misrepresentation, or for any other liability that cannot lawfully be excluded or limited. The exclusions and limits in this Section do not apply to Customer’s payment obligations, to Customer’s breach of Sections 2, 3 or 4, or to either party’s liability for breach of the other’s intellectual property rights.

The parties agree that these allocations of risk are a fundamental basis of the bargain and are reflected in the fees.

8. Term and termination

This Agreement runs for the term of your subscription. Either party may terminate for material breach not cured within thirty (30) days of written notice. Tessera may suspend or terminate immediately for breach of Section 2 or Section 3.

On termination you must stop using the Software and remove it from your systems. Sections 3, 4, 6, 7, 10, 11, 12 and 13 survive termination.

9. Support and updates

Support and update entitlements are those stated in your subscription or order form. Nothing in this Agreement obliges Tessera to provide any particular update or new version.

10. Third-party software

The Software includes third-party components that remain under their own licence terms. Those components, and the full text of their licences, are listed in the THIRD_PARTY_NOTICES.txt file distributed with each Tessera artifact:

Nothing in this Agreement limits any right you have under those third-party licences. In particular, for components licensed under the GNU Lesser General Public License, the complete corresponding source code and the scripts used to build the binaries Tessera ships are published at https://downloads.tessera.company/oss/, and you may modify and relink those components as their licence permits; instructions are given in the notices file.

11. Export, sanctions and government use

The Software contains cryptographic functionality and is subject to export-control and sanctions laws, which may include those of the Republic of Moldova, the European Union, the United Kingdom and the United States.

Customer agrees to comply with all such laws and represents and warrants that it is not, and no Authorised User is, (a) located in, organised under the laws of, or ordinarily resident in a country or territory subject to comprehensive sanctions, or (b) a person listed on any applicable restricted-party list, or owned or controlled by such a person. Customer will not export, re-export, transfer or make the Software available in breach of those laws, nor use it in connection with the development of weapons of mass destruction.

Where the Software is licensed to or on behalf of a government body, it is licensed as commercial computer software on the terms of this Agreement only; no rights beyond those granted here are conveyed.

12. Purchasing, fees and taxes

Subscriptions are sold through Polar Software, Inc. (“Polar”), a Delaware corporation acting as merchant of record and reseller. Your purchase transaction — the order, invoicing, payment, applicable VAT or sales tax, and any refund — is therefore concluded with Polar and governed by Polar’s terms, not by this Agreement. The price shown at checkout is the total payable; Polar calculates and itemises any VAT or sales tax on your invoice.

This Agreement governs your licence to use the Software. In the event of a conflict, Polar’s terms govern the purchase transaction and this Agreement governs the licence.

Where Customer purchases directly from Tessera under a signed order form, that order form governs fees, payment terms and taxes instead of this Section.

13. General

This Agreement is the entire agreement between the parties on its subject matter and supersedes prior discussions. If any provision is unenforceable, the remainder stands. A failure to enforce is not a waiver. You may not assign this Agreement without Tessera’s written consent. Nothing in this Agreement creates a partnership, agency or employment relationship. Neither party is liable for delay or failure caused by events beyond its reasonable control.

Governing law: This Agreement, and any dispute or claim arising out of or in connection with it (including non-contractual disputes or claims), is governed by and construed in accordance with the laws of England and Wales, excluding its conflict-of-laws rules and the United Nations Convention on Contracts for the International Sale of Goods.

Dispute resolution: Any dispute arising out of or in connection with this Agreement, including any question regarding its existence, validity or termination, shall be referred to and finally resolved by arbitration under the LCIA Rules, which are deemed incorporated by reference into this clause. The seat of the arbitration shall be London, England; there shall be one arbitrator; and the language of the arbitration shall be English. Judgment on the award may be entered in any court of competent jurisdiction.

Notwithstanding the above, either party may seek interim or injunctive relief to protect its intellectual property or confidential information in any court of competent jurisdiction.

Questions about this Agreement: legal@tessera.company

Questions: legal@tessera.company