Privacy Policy

■ Purpose of Use of Personal Information

We use personal information such as email addresses for the following purposes:

• Sending download links (magic links) to purchasers
• Managing purchase history (purchased.json)
• Preventing unauthorized access and verifying purchaser identity
• Responding to inquiries

■ Information Collected

Information obtained via Stripe payments:

• Email address
• Payment session ID

Information obtained during site usage:

• IP address (recorded in download_history.json for security and anti-abuse purposes)
• User agent
• Download count and timestamps

■ Provision of Personal Information to Third Parties

We do not provide personal information to third parties except when required by law.

■ Retention Period of Personal Information

Purchase records (purchased.json) are stored up to a maximum of 10,000 entries.

Download history (download_history.json) is rotated monthly.

■ Security Measures

We implement the following security measures:

• CSRF protection
• IP-based rate limiting
• Encrypted storage of original content files
• JWT-based identity verification for magic links
• Exclusive file locking for log and JSON files

■ Cookies

We use cookies for session management. Cookies are not used for the purpose of personally identifying users beyond what is necessary for service operation.

■ Inquiries Regarding Personal Information

For questions regarding personal information, please contact:

Email: (Your email address)