Privacy & Security

Browser Cash is built on a foundation of robust privacy and security principles that protect users, data, and the overall ecosystem. This documentation outlines the technical measures and protocols implemented throughout our architecture.

Privacy-First Architecture

Browser Cash implements a multi-layered privacy system designed to ensure user anonymity while enabling valuable AI training:

Local Privacy Mechanisms

Before any data leaves a user's device, it undergoes comprehensive processing:

1. Personal Identifier Removal

   • Automatic detection and redaction of personally identifiable information (PII)

   • Removal of unique browser fingerprinting signals

   • Sanitization of user-specific behavioral patterns

2. Data Minimization

   • Collection limited to essential interaction patterns

   • Content data excluded from collection

   • Temporal and session data generalized

Network Transmission Security

All communication between Browser Cash nodes and infrastructure employs industry-standard security measures:

• TLS 1.3 with perfect forward secrecy

• Certificate pinning to prevent man-in-the-middle attacks

Blockchain Security

Browser Cash leverages blockchain technology to ensure system integrity:

Key Security Features

1. Cryptographic Identity

   • Each node maintains a unique cryptographic identity

   • Elliptic curve cryptography (secp256k1) for digital signatures

2. Smart Contract Safeguards

   • Formally verified contract implementations

   • Multi-signature operations for critical functions

   • Time-locked execution for significant changes

3. Consensus Security

   • Sybil attack resistance through proof mechanisms

   • Majority attack protection via distributed validation

   • Economic disincentives for malicious behavior

Data Integrity Verification

All collected data undergoes blockchain verification:

Anti-Abuse Protections

Browser Cash implements measures to prevent misuse of the platform:

Bot Detection and Prevention

The system employs multiple techniques to ensure legitimate participation:

• Behavioral consistency verification

• Activity pattern analysis

• Resource utilization monitoring

Sybil Attack Mitigation

To prevent fake identity proliferation:

• Contribution quality assessment

• Time-based trust building

• Cross-verification of node patterns

Data Protection Throughout the Lifecycle

Collection

• Only non-sensitive interaction patterns collected

• Content data explicitly excluded

• User consent required for participation

• Clear privacy notices

Processing

• Data processed on trusted infrastructure

• Access controls limit exposure

• Audit logs track all data access

Storage

• Encryption at rest using AES-256

• Secure key management with hardware security modules

• Data segregation by sensitivity level

Usage

• Aggregated insights only, never individual data

• Privacy-preserving analytics techniques

Compliance Framework

Browser Cash is designed to align with global privacy regulations:

• GDPR principles of data minimization and purpose limitation

• CCPA rights for access, deletion, and opt-out

• Privacy by design and default throughout architecture

• Transparent data practices

Independent Verification

Browser Cash provides multiple mechanisms for independent verification:

1. Open Source Components

   • Cryptographic implementations transparently documented

   • Community validation of security claims

2. Regular Audits

   • Third-party security audits of infrastructure

   • Cryptographic protocol review by experts

3. Transparency Reports

   • Regular publication of system operation metrics

   • Aggregate statistics on data collection