MemCab ("we", "our", or "us") is committed to protecting your privacy. This Privacy Policy explains how our website and Chrome Extension collect, use, and protect your information when you use MemCab services ("Services").

By accessing or using MemCab, you confirm that you agree to be bound by this Privacy Policy. You also confirm that you are either at least 18 years old or, if you are younger than 18, that you have the permission of your parent or legal guardian.

1. Information We Collect

1.1 Information You Submit

MemCab collects personal information from you when you:

• Register for access to the Services (email address, password, username)
• Update your profile
• Use certain Services
• Contact us with inquiries
• Respond to our surveys

1.2 Saved Vocabulary Data

• Words and phrases you save
• Translations and definitions you look up
• Your learning progress and statistics
• Collections and folders you create
• Review history and test results

1.3 User Settings and Preferences

• Language preferences (English-Vietnamese)
• Application configuration settings
• Keyboard shortcut preferences (Chrome Extension)
• Notification preferences

1.4 Technical Data

• Device or other IDs that help identify your account
• Browser version and type
• Extension version (if using Chrome Extension)
• Error logs (for debugging purposes only)
• Usage statistics (anonymized)

2. Tracking Technology

When you interact with MemCab through the Services, we receive and store certain personally non-identifiable data. Such information, which is collected passively using various technologies, cannot presently be used to specifically identify you.

Cookies

We store certain information from your browser using "cookies". Cookies are pieces of data stored on your device. Cookies help us make our Services and your visit better. We use cookies to:

• Maintain your login session securely across the web app
• See which parts of our Services people use and like
• Count visits to our Services
• Remember your preferences and settings

3. Use of Personal Information

We use your personal information for purposes which may include:

• Provide our customers with a personalized service: Customize your learning experience
• Processing orders, registrations and inquiries: Manage your account and respond to your requests
• Conducting market research surveys: Understand user needs and improve our services
• Measuring interest in and improving our Services: Analyze usage patterns and enhance features
• Providing you with information about products and services: Send updates about MemCab features (you can opt-out anytime)
• Resolving disputes, collecting fees, and troubleshooting problems: Handle technical issues and customer support
• Save Your Vocabulary: Store and sync your saved words across devices
• Authentication: Maintain your login session securely

4. Important Disclosures and Practices

4.5 What We Do NOT Do

• Sell your personal information to third parties
• Share your data with advertisers
• Track your browsing history beyond dictionary lookups
• Use your data for purposes other than providing the dictionary service

5. Choice and Opt-Out

You have control over your information:

• You may opt-out of receiving MemCab marketing and promotional emails by following the instructions included in each newsletter
• You can set your own preferences online for receipt of MemCab communications
• You may contact us at hello@memcab.com to opt-out or update your preferences
• Click "Unsubscribe" in any email to have your email address removed from our mailing list

6. Access to Your Information

Once you register for the Services, you can update your personally identifiable information at any time through your account settings.

If for any reason you are concerned that the personal information that we store is not correct, or should you wish to have your email address or registration/contact information changed, updated, or removed from our mailing list, please contact us at hello@memcab.com.

7. Data Storage and Security

7.1 How MemCab Protects Your Information

We have security procedures for the storage and disclosure of personal information, which you have given us in order to prevent unauthorized access. We implement security measures including:

• HTTPS encryption for all data transmission
• Secure token-based authentication
• Regular security audits
• Automatic token expiration and refresh
• Isolated Chrome storage (not accessible by other extensions)

7.2 Local Storage (Chrome Extension)

• Authentication tokens are stored in Chrome's local storage on your device (encrypted by Chrome)
• Cached dictionary data for offline access
• User preferences and settings

7.3 Remote Storage

Your saved vocabulary is stored on our secure servers. All data is encrypted in transit using HTTPS.

8. Chrome Extension Permissions

Our Chrome Extension requires the following permissions to function:

• <all_urls> - Access all websites: To inject dictionary popup on any webpage you visit
• tabs - Access browser tabs: To open MemCab web app when you need to log in
• storage - Local storage: To save your vocabulary, settings, and authentication tokens
• contextMenus - Context menu: To add "Look up in MemCab" option when you right-click
• scripting - Script injection: To inject dictionary lookup functionality
• commands - Keyboard shortcuts: To enable keyboard shortcuts (Ctrl+Shift+D for lookup)

9. Data Deletion

You can delete your account and terminate your use of the Services at any time by locating the "Delete Account" option in the settings section of your Profile.

10. Your Rights

You have the right to:

• Access Your Data: Request a copy of your saved vocabulary and settings
• Delete Your Data: Delete your account and all associated data
• Export Your Data: Download your saved vocabulary in standard format
• Correct Your Data: Update your information to ensure it remains accurate
• Opt-Out: Uninstall the extension or delete your account at any time
• Object to Processing: Object to certain uses of your data

Data Retention

• Active Accounts: We retain your data as long as your account is active
• Inactive Accounts: MemCab reserves the right to delete accounts that are inactive for a period of more than 12 months
• Deleted Accounts: Data is permanently deleted within 30 days of account deletion

11. Children's Privacy

MemCab is not directed to children under 13. We do not knowingly collect information from children under 13.

If you are under 18 years old, you must have the permission of your parent or legal guardian to use MemCab, who will take responsibility for your compliance with these Terms of Service.

12. Modification of the Privacy Policy

The Services and our business may change from time to time. As a result, at times it may be necessary for MemCab to make changes to this Privacy Policy.

We will notify users of any material changes by:

• Updating the "Last Updated" date
• Displaying a notification in the application
• Sending an email (if you have opted in to notifications)
• Posting notice on the website wherever possible

13. Contact Us

Please also feel free to contact us if you have any questions about MemCab's Privacy Policy or the information practices of MemCab:

We typically respond to inquiries within 24-48 hours during business days.

14. Compliance

This Privacy Policy and MemCab services comply with:

• Chrome Web Store Developer Program Policies
• General Data Protection Regulation (GDPR) - applicable to EU users
• California Consumer Privacy Act (CCPA) - applicable to California users
• International data protection and privacy laws