Privacy Policy

Last Updated: February 21, 2026

1. Introduction

StackTrackPro ("Company," "we," "us," or "our") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our website, mobile application, and related services (collectively, the "Platform").

2. Information We Collect

2.1 Information You Provide Directly

Account Registration:

Full name, email address, phone number
Date of birth
Home and/or business address
Username and password

Payment Information:

Credit card or bank account details
Billing address
Tax identification number (for Sellers)

Profile Information:

Profile picture and biography
Seller shop policies and descriptions
Feedback and reviews you write
Preferences and communication settings

Communication:

Messages with other Users
Customer support inquiries
Survey and feedback submissions

2.2 Information Collected Automatically

Technical Data:

IP address and device identifiers
Browser type, operating system, and version
Device type and model
Device settings and characteristics

Usage Data:

Pages or features you access and time spent
Searches and filters used
Items viewed and bid history
Links clicked and navigation patterns
Clicks, scrolls, and interactions

Location Data:

Approximate location based on IP address
Precise location (only with your permission)

Cookies and Tracking:

Cookies (persistent and session)
Web beacons and pixel tags
Local storage and similar technologies

2.3 Information from Third Parties

Payment processors (transaction data)
Identity verification services (background checks)
Fraud prevention services (risk assessment)
Analytics providers (usage patterns)
Social media platforms (if you link accounts)
Other Users (reviews and feedback)

3. How We Use Your Information

3.1 Service Provision

Process auctions and transactions
Calculate and collect fees and taxes
Facilitate communication between Users
Process payments and payouts
Provide customer support
Issue invoices and records

3.2 Safety and Fraud Prevention

Detect, prevent, and address fraud and abuse
Verify User identity and prevent multiple accounts
Monitor for prohibited items and illegal activity
Enforce Terms of Service and other agreements
Protect against security threats
Comply with legal obligations

3.3 Improvement and Analytics

Analyze Platform usage and performance
Identify trends and develop new features
Test features and troubleshoot issues
Improve user experience and algorithms
Understand market demand and preferences

3.4 Marketing and Communication

Send promotional emails and offers (with consent)
Send notifications about auctions and messages
Conduct surveys and collect feedback
Recommend items and sellers based on activity
Send system alerts and policy updates

3.5 Personalization

Customize your experience and recommendations
Display targeted content and advertising
Segment users for features and services

4. Legal Basis for Processing

We process your information based on:

Contract Performance: To provide services you've requested
Legal Obligation: To comply with laws and regulations
Legitimate Interest: To protect security, prevent fraud, improve services
Consent: For marketing, profiling, and optional features
Vital Interest: To protect safety and prevent harm

5. How We Share Your Information

5.1 Service Providers

We share information with vendors and contractors who assist with:

Payment processing
Fraud detection and identity verification
Email and SMS delivery
Cloud hosting and storage
Analytics and data analysis
Customer support

5.2 Other Users

Seller name and rating visible to Buyers
Buyer name and location visible to Sellers
Public feedback and reviews
Shipping address (to fulfilling Seller)

5.3 Legal Requirements

We disclose information when required by law or to:

Comply with court orders or government requests
Respond to subpoenas or legal processes
Enforce our Terms of Service
Protect rights, safety, and property
Prevent fraud and criminal activity

5.4 Business Transfers

If StackTrackPro is acquired, merges, or sells assets, your information may be transferred as part of that transaction. We will provide notice before such changes occur.

5.5 Aggregated and De-identified Data

We may share aggregated or anonymized data that cannot identify you with partners, researchers, and public sources without restriction.

6. Data Retention

We retain information for as long as necessary to provide services and fulfill legal obligations:

Account Information: Duration of account + 3 years (for disputes)
Transaction Data: 7 years (tax and legal requirements)
Payment Information: Securely deleted after processing, or per PCI requirements
Cookies: Deleted per your browser settings
Marketing Opt-out: 1 year after opt-out

7. International Data Transfers

Your information may be transferred to and processed in countries other than where you reside, including the United States. These countries may have different privacy laws. By using the Platform, you consent to transfer of your information.

8. Your Privacy Rights

8.1 EU/UK Users (GDPR)

You have the right to:

Access: Obtain a copy of your data
Rectification: Correct inaccurate data
Erasure: Delete your data (right to be forgotten)
Restriction: Limit processing of your data
Portability: Move your data to another service
Object: Opt-out of marketing and profiling
Withdraw Consent: Stop optional processing
File a Complaint: With your supervisory authority

8.2 California Users (CCPA/CPRA)

You have the right to:

Know: What personal information is collected
Access: Obtain a copy of your data
Delete: Request deletion of data
Correct: Correct inaccurate data
Opt-Out: Opt-out of sales/sharing of data
Non-Discrimination: No penalty for exercising rights

8.3 Virginia, Colorado, Connecticut, Utah Users

Under VCDPA and similar laws, you have the right to:

Confirm data collection and processing
Access, delete, and correct your data
Opt-out of targeted advertising and profiling
File complaints with your state attorney general

8.4 Exercising Your Rights

To exercise your privacy rights, contact us at privacy@stacktrackpro.com. We will respond within 30-45 days. You may designate an authorized agent to submit requests on your behalf.

9. Children's Privacy

The Platform is not intended for children under 13. We do not knowingly collect information from children. If we learn we have collected data from a child under 13, we will delete it immediately and terminate the account. Contact us at privacy@stacktrackpro.com if you become aware of such collection.

10. Cookies and Tracking Technologies

10.1 Types of Cookies

Essential: Necessary for Platform functionality
Functional: Remember preferences and settings
Analytics: Measure usage and performance
Advertising: Serve targeted ads (requires consent)

10.2 Cookie Management

You can control cookies through your browser settings and may opt-out of non-essential cookies. Disabling essential cookies may affect Platform functionality. To manage cookies, visit [Cookie Preferences Page].

11. Third-Party Links and Services

The Platform may contain links to third-party websites and services. We are not responsible for their privacy practices. Review their privacy policies before sharing information.

12. Security

We implement security measures including encryption (TLS/SSL), secure servers, and access controls. However, no security method is 100% secure. Use strong passwords, enable two-factor authentication, and report suspicious activity immediately.

13. Do Not Track (DNT)

While we respect DNT signals, we cannot currently disable all tracking methods. We encourage you to use your browser settings to manage tracking.

14. California Consumer Privacy Rights (Non-Discrimination)

We will not discriminate against you for exercising your privacy rights. You will not receive different service, pricing, or quality based on exercising your rights.

15. Changes to Privacy Policy

We may update this Privacy Policy. Material changes will be notified via email or prominent notice on the Platform. Continued use constitutes acceptance of changes.

16. Contact Us

For privacy questions, concerns, or to exercise your rights, contact:

Privacy Officer
StackTrackPro, Inc.
Email: privacy@stacktrackpro.com
Phone: +1 (555) 123-4567
Address: 123 Trading Plaza, San Francisco, CA 94105