Nextchain.site

Security review
for your website and app.

Nextchain helps you review risks and decide what to address first, before launch or while your product is in use.

We agree on the scope before starting.
No source code or login details needed to register.

Illustrative application window with a login area, user list and settings
Access permissions
Who can view and edit?
Data
What is publicly visible?
Configuration
What needs a deployment review?
Know which risks to review and what to address next.

For projects built with AI, coded yourself or developed by a team

For new and existing websites and apps

Reports state both findings and areas not reviewed

Risks that deserve a closer look.

A working interface does not tell you how well its data is protected. The review depends on the application and materials you authorize us to access.

Exposed API keys and data

Initial review of the public application

Look for signs of sensitive information exposed in the public application. Checking source code for secrets requires separate access.

Login and access permissions

Deeper review with authorized access

Identify checks needed to confirm users can only access their own data. A deeper review requires test accounts and an agreed scope.

Dependencies and deployment settings

Scope depends on the materials provided

Compare dependency versions against security advisories when a dependency list is available, and review public settings within the agreed scope.

Start with an initial review.

Get an initial assessment to help decide whether a deeper review is needed. We agree on the scope at each stage.

Tell us about your project

The initial scope is free

  • One project, with the scope confirmed before the review.
  • Public areas and one main user flow, where accessible.
  • A short report with any findings, evidence, limitations and next steps.

When you need a deeper review or fixes

Source code, databases, permissions across multiple roles and retesting after fixes are scoped and quoted separately. The initial review is not a comprehensive penetration test or security certification.

From your request to next steps.

  1. Step 1

    Share your project

    Tell us what you have built and what you want reviewed. No system access is needed at this stage.

  2. Step 2

    Agree on the scope

    Nextchain contacts you by email to confirm authorization, review areas and scheduling.

  3. Step 3

    Receive findings and guidance

    See the results for the agreed scope. Choose whether to make fixes yourself or discuss further support.

Request a free initial review

About your project

Fields marked * are required.

No public application yet? Leave this blank. Do not include access tokens or login details in the URL.

Describe the issue only; do not include passwords, API keys or customer data.

Submit a request to confirm the scope. Deeper reviews and fixes are quoted separately.

Prefer to email us? contact@nextchain.kr

Before you register

What does the free initial review include?

One project within a scope confirmed in advance: public settings, signs of exposed information and one main user flow where accessible. The report states what was reviewed, any findings, areas not reviewed and recommended next steps.

Can you check all security aspects with just a URL?

A URL only gives access to public areas. Reviewing source code, access permissions, databases or server-side secrets requires separately agreed access and scope. Areas without enough information are marked as not reviewed.

Can I register a live website or a project that has not launched?

You can submit a new or existing website or app, including projects without a public URL. Projects built with AI, coded yourself or developed by another team are welcome. Describe what you want reviewed; Nextchain will confirm availability and a suitable scope.

Do I need to send source code, passwords or API keys now?

Registration only requires contact details and a project description. Do not submit passwords, API keys, access tokens or customer data in the form. If deeper review requires access, we will agree on how to share it and limit permissions first.

When will I receive the results?

After receiving your request, Nextchain will email you to confirm the project, scope and schedule. Report delivery is agreed at that stage, depending on complexity and the information provided.

Does a review guarantee that my application is completely secure?

The report reflects checks within a specific scope at a particular time. An initial review is not security certification or a comprehensive penetration test. Later changes may introduce new risks and require another review.