Terms of Service

LAST UPDATED — 8 OCTOBER 2026

1. Agreement

By downloading, installing, or using ZeroWrite, you agree to these terms. If you are agreeing on behalf of an organisation, you confirm you have the authority to bind it.

2. Licence to use the software

We grant you a non-exclusive, non-transferable, revocable licence to install and use ZeroWrite on one machine for each licence you hold. You may not resell, sublicense, or redistribute it, and you may not remove or circumvent its licensing or update-verification mechanisms.

Reverse engineering is permitted only to the extent that applicable law allows it regardless of contract — for example, security research conducted under our vulnerability disclosure policy.

3. Plans, trials, and seats

• Trial. A 14-day full-feature trial starts on first run. No licence key and no payment card are required.
• Personal. For use by an individual on their own machine, for non-commercial purposes. Personal is not free: it is free only for the 14-day trial, and after that it is a paid monthly subscription.
• Paid plans. Billed on a recurring basis through Paddle. Each licence permits activation on a single machine.

Protecting machines owned or operated by a business requires a Professional, Professional Plus, or Enterprise licence rather than Personal.

4. Billing and cancellation

Paddle is our merchant of record. When you buy a ZeroWrite subscription, your contract of sale is with Paddle, which sells the licence to you as an authorised reseller. Paddle appears as the seller on your receipt and collects any sales tax or VAT due in your country. This agreement continues to govern your use of the software itself.

Subscriptions renew automatically until cancelled. You can cancel at any time through the billing portal Paddle links from every receipt; your licence remains active until the end of the period you have already paid for. We do not prorate partial periods. If a payment fails, we will retry and notify you before the licence lapses.

If ZeroWrite does not work for you, contact [email protected] within 14 days of your first payment and we will refund it.

5. What happens when a licence lapses

We consider it unethical to switch off protection because a card expired. On lapse, after the grace period:

1. The pre-execution engine keeps protecting you with the rule pack it already has.
2. Rule-pack updates, new versions, and support stop.
3. The application shows a clear, persistent notice that the subscription has lapsed.

After a long lapse the application may reduce to on-demand scanning. It will never silently uninstall itself or stop protecting you without telling you.

6. Your responsibilities

• Keep your account credentials and licence key confidential.
• Do not use ZeroWrite to develop, test, or distribute malware.
• Do not attempt to disrupt the service for other users.
• Comply with the export and sanctions laws that apply to you.

7. No guarantee of detection

No security product stops every threat, and ZeroWrite does not claim to. It reduces risk; it does not eliminate it. You remain responsible for maintaining backups, applying operating-system and application updates, and operating with least privilege. ZeroWrite is one layer, not a complete security programme.

8. Warranty disclaimer

The software is provided "as is", without warranties of any kind, express or implied, including merchantability, fitness for a particular purpose, and non-infringement, to the fullest extent permitted by law.

9. Limitation of liability

To the maximum extent permitted by law, we are not liable for indirect, incidental, special, consequential, or punitive damages, or for lost profits, revenue, or data. Our total liability arising out of these terms is limited to the amount you paid us in the twelve months before the claim arose.

Nothing in these terms excludes liability that cannot lawfully be excluded, including for death or personal injury caused by negligence, or for fraud.

10. Suspension and termination

You may stop using ZeroWrite and delete your account at any time. We may suspend or terminate access if you materially breach these terms — with notice and an opportunity to fix the problem, unless the breach is one that makes notice inappropriate, such as using the product to distribute malware.

11. Changes to these terms

We may update these terms. For material changes affecting an active subscription we will give reasonable notice by email before they take effect. Continuing to use ZeroWrite after that means you accept the revised terms.

12. Governing law

These terms are governed by the laws of the jurisdiction in which ZeroWrite.ai is established, and the courts of that jurisdiction have exclusive jurisdiction, without affecting any mandatory consumer rights you have where you live.

13. pentest4u.com services

These terms govern the ZeroWrite software. Services provided by pentest4u.com — including penetration testing, managed SOC, incident response, threat hunting and vulnerability management — are provided only under a separate written services agreement signed by both parties, which sets out the scope, fees and responsibilities for that engagement.

We perform security testing only against systems named in a signed scope and with written authorisation from someone entitled to give it. Requesting a quote, or anything else on this website or on pentest4u.com, is not authorisation to test.

14. Contact

Questions about these terms: [email protected].

Related: Privacy Policy · Security & disclosure