Privacy Policy

Effective Date: February 20, 2026

Operated by AI CheckMark LLC (California, USA)

Billing: billing@backtestlm.ai
Legal & Privacy: legal@backtestlm.ai

1. Overview

BacktestLM is designed with data minimization principles. We collect only the information necessary to provide and improve the Service.

1.1 Data Controller Statement

AI CheckMark LLC acts as the data controller for personal information collected through the Service.

2. Personal Data We Collect

2.1 Account Information

  • Email address (required for account creation and authentication)

2.2 Technical & Log Data

  • IP address
  • Browser/device metadata
  • Timestamps and request logs
  • Security and abuse detection signals

2.3 Backtest & Execution Data

  • Strategy prompts and configuration parameters
  • Backtest execution metadata
  • Performance outputs (CAGR, drawdown, distributions, etc.)

We may retain execution data to improve system performance, reliability, and research quality. Where feasible, data is aggregated or de-identified.

2.4 Payment Processing

Payments are processed by third-party providers. We do not store full payment card details.

3. Is an IP Address Personal Data?

Yes. Under GDPR and California CPRA, IP addresses may be considered personal data when reasonably linkable to an individual. We process IP addresses primarily for security, fraud prevention, and system integrity.

4. How We Use Data

  • Provide and operate the Service
  • Authenticate users
  • Detect abuse or fraud
  • Improve platform performance
  • Conduct internal research and analytics
  • Comply with legal obligations

4.1 Research, Model Training & Product Improvement

We may use strategy prompts, configurations, execution metadata, and performance outputs in aggregated or de-identified form to:

  • Improve system performance and reliability;
  • Enhance AI model quality and safety;
  • Conduct internal research and benchmarking;
  • Develop new features and functionality.

We do not use identifiable personal data to train third-party AI models.

Aggregated or de-identified data may be retained indefinitely for research and product development.

5. Legal Basis (GDPR Framework)

  • Performance of a contract
  • Legitimate interests (security, improvement)
  • Legal obligations
  • Consent (where required for non-essential cookies)

6. Analytics & Advertising

We may use analytics tools (e.g., Google Analytics) and may introduce advertising or measurement technologies in the future. Where required (EU/UK), we request consent before enabling non-essential cookies.

You may manage preferences through available cookie settings and browser controls.

7. Data Sharing

We may share data with trusted service providers such as:

  • Cloud hosting providers (e.g., Google Cloud Platform)
  • Database and monitoring services
  • Payment processors

Service providers process data under contractual obligations consistent with this Privacy Policy.

We do not sell personal information.

8. Data Retention

We retain personal information for as long as necessary to:

  • Provide the Service;
  • Comply with legal obligations;
  • Enforce agreements;
  • Resolve disputes.

Accounts that remain inactive for an extended period of time may be subject to data deletion or anonymization in accordance with internal data retention policies.

Where feasible, strategy-related data and execution metadata may be retained in aggregated or de-identified form for research, statistical analysis, and system improvement after personal identifiers are removed.

9. International Transfers

Data may be processed in the United States or other jurisdictions where our service providers operate. Where required, we rely on appropriate safeguards such as Standard Contractual Clauses.

10. Your Rights

Depending on your jurisdiction, you may have rights to access, correct, delete, or restrict processing of your data.

We may require verification of identity before processing requests. To exercise rights: legal@backtestlm.ai

11. California Privacy Rights (CPRA)

If you are a California resident, you may have the right to:

  • Request access to personal information we collect;
  • Request correction of inaccurate information;
  • Request deletion of personal information (subject to legal exceptions).

We do not sell or share personal information for cross-context behavioral advertising.

To exercise your rights, contact legal@backtestlm.ai.

12. Security

We implement commercially reasonable technical and organizational measures to protect your data.

13. Children

The Service is not intended for individuals under 18 or the age of majority in their jurisdiction.

14. Changes

We may update this Privacy Policy. The latest version will be posted on this page.