Privacy Policy

Effective Date: July 10, 2026

1. Introduction

This Privacy Policy explains how GisE sp. z o.o. („we”, „our”, or „the Company”) collects, uses, stores, and protects information when you use the SecureCall mobile application („Application”).

SecureCall is designed to protect users against telecommunications threats, including:

• GSM caller ID spoofing,
• SIM Swap attacks,
• IMSI Catcher (fake base station) attacks.

The Application has been designed according to the principles of Privacy by Design and Privacy by Default, meaning that it processes only the minimum amount of information necessary to provide its security features.

2. Data Controller

GisE sp. z o.o.

Address: Sudecka 6a lok. 8, 15-552 Białystok

Email: kontakt@gise.com.pl

3. Information We Collect

SecureCall is designed to minimize data collection.

The Application processes only information required to provide its security services.

Hashed Phone Number

During activation, the Application generates a one-way cryptographic hash of the user’s phone number.

The original phone number is never transmitted or stored on our servers.

Because the hash is generated using a one-way cryptographic function, it cannot reasonably be reversed to reveal the original phone number.

Encrypted Security Data

When required to provide fraud detection services, the Application exchanges security-related information.

All such information is protected using End-to-End Encryption (E2EE).

The Company cannot access the decrypted content of this information.

4. Information We Do NOT Collect

SecureCall does not collect or store:

• your contacts,
• SMS messages,
• phone call recordings,
• microphone audio,
• photos,
• videos,
• precise location,
• browsing history,
• passwords,
• payment information,
• personal files.

The Application is not intended for advertising, profiling, or behavioral tracking.

5. How We Use Information

The limited information processed by SecureCall is used solely to:

• detect caller ID spoofing,
• identify potential SIM Swap attacks,
• detect suspicious GSM network behavior,
• identify possible IMSI Catcher activity,
• improve the reliability and security of the Application,
• prevent abuse and fraud.

We do not sell personal information.

We do not use your information for advertising.

We do not build user profiles.

6. Permissions Used by the Application

Depending on the Android version and enabled features, SecureCall may request permissions such as:

• Phone permissions – to detect incoming calls and verify security events.
• Call-related permissions – only when necessary to identify spoofing attempts.
• Notification permission – to alert users about detected threats.
• Foreground service permission – to continuously monitor security-related events.

Permissions are requested only when required by the enabled functionality.

7. Data Security

We implement industry-standard security measures, including:

• End-to-End Encryption (E2EE),
• cryptographic hashing,
• secure authentication,
• strict access controls,
• infrastructure monitoring.

Our systems are designed so that we cannot recover users’ phone numbers from stored hashes.

8. Data Sharing

We do not sell or rent user information.

Information may be disclosed only:

• to service providers acting on our behalf under appropriate contractual safeguards,
• when required by applicable law.

9. Data Retention

Information is retained only for as long as necessary to provide the requested services and maintain system security.

When no longer required, information is securely deleted or anonymized.

10. Children’s Privacy

SecureCall is not directed to children under the age required by applicable law.

We do not knowingly collect personal information from children.

11. Your Rights

Depending on your jurisdiction, you may have the right to:

• access your information,
• request correction,
• request deletion,
• object to processing,
• request restriction of processing,
• lodge a complaint with your local data protection authority.

12. Changes to This Privacy Policy

We may update this Privacy Policy from time to time.

Material changes will be reflected by updating the Effective Date.

13. Contact

If you have any questions regarding this Privacy Policy, please contact:

GisE sp. z o.o.

Email: kontakt@gise.com.pl

Website: gise.com.pl