Privacy Policy

1. Purpose and Principles

The Service is operated for the purpose of functionality testing and user experience (Experience) verification in a blockchain testnet environment. The Company's principle is not to collect or store personally identifiable information (e.g., email, phone number, real name) beyond what is necessary to provide the Service.

2. Personal Information Not Collected or Stored

The Company does not request the following information and does not store it as account data:

• Email addresses (the Service does not aim to collect emails, and does not request email scope in OAuth/OIDC)
• Real name, phone number, address, payment information
• National ID numbers, CI/DI, or other identity verification identifiers
• Date of birth, gender, or other unnecessary profile details

3. Information That May Be Processed During Service Use

Even though the Company does not collect or store personal information as account data, the following information may be technically processed or generated during service provision:

(1) Social Login (Google/Kakao/Naver) Authentication

When users authenticate via Google/Kakao/Naver login, minimal identifiers issued by the authentication provider (e.g., OIDC 'sub' or equivalent unique values) may be temporarily processed for authentication completion and session maintenance. The Company does not request additional personal information beyond what is necessary for authentication, and does not aim to collect email addresses.

(2) Blockchain (Testnet) Information

Testnet transactions may occur within the Service, generating blockchain information such as wallet addresses and transaction hashes. NFT features are currently not active in the basic experience flow; if provided in the future, they will be testnet-based with no monetary value. Due to the nature of blockchain networks, this data may be recorded on public ledgers and be publicly queryable. The Company cannot arbitrarily delete or modify such data.

(3) Technical Information for Security/Incident Response (Logs)

To maintain service stability and security, technical information such as IP addresses, User-Agent, access timestamps, error logs, and abnormal traffic detection data may be processed and stored for a short period. This is for security and incident response purposes only, not for commercial use of user personal information.

4. Purpose of Use

Processed information is used only for the following purposes:

• Login/session maintenance and feature provision
• Service quality assurance (error analysis, performance/stability checks)
• Fraud prevention (automated attacks, abnormal request detection)

5. Retention Period and Disposal

• The Company does not, in principle, collect or store user personal information as account data.
• Technical logs for security/incident response are retained for the minimum necessary period before deletion.
• Data recorded on the blockchain (testnet) cannot be destroyed by the Company due to the nature of the network.

6. Third-Party Provision and Processing Delegation

The Company does not sell user information to third parties. However, communication with the following external authentication providers occurs for social login:

• Google, Kakao, Naver (login authentication processing)

Additionally, cloud/hosting/monitoring tools may be used for service operation, and any significant changes will be communicated through this policy or service announcements.

7. User Rights and Inquiries

Users may inquire about personal information processing, and the Company will provide guidance within reasonable scope. Contact: info@shardlab.com

8. Security Measures

The Company applies reasonable security measures to protect personal information and the Service:

• Transport encryption (HTTPS)
• Access control management and security monitoring
• Vulnerability/incident response process operation

9. Policy Changes

This policy may be amended in accordance with changes in laws or the Service. Changes will be announced through the website or service notifications.

10. Contact

Email: info@shardlab.com