Payment Systems Security

4.

Payment System Component Security

4.1.

Point-of-Sale Security

4.1.1.

Terminal Hardware Security

4.1.1.1.

Secure Boot Processes

4.1.1.2.

Tamper Detection Mechanisms

4.1.1.3.

Tamper Response Systems

4.1.1.4.

Physical Security Controls

4.1.2.

Terminal Configuration Security

4.1.2.1.

Default Credential Management

4.1.2.2.

Secure Configuration Baselines

4.1.2.3.

Firmware Update Procedures

4.1.2.4.

Certificate Management

4.1.3.

POS Application Security

4.1.3.1.

Secure Software Development

4.1.3.2.

Application Whitelisting

4.1.3.3.

Runtime Protection

4.1.3.4.

Memory Protection

4.1.4.

Communication Security

4.1.4.1.

Terminal-to-Gateway Encryption

4.1.4.2.

Certificate Pinning

4.1.4.3.

Network Segmentation

4.1.4.4.

Wireless Security

4.2.

E-commerce Security

4.2.1.

Payment Page Security

4.2.1.1.

Hosted Payment Pages

4.2.1.2.

Iframe Integration Security

4.2.1.3.

JavaScript Security

4.2.1.4.

Form Field Protection

4.2.2.

Web Application Vulnerabilities

4.2.2.1.

Cross-Site Scripting Prevention

4.2.2.2.

Input Validation Techniques

4.2.2.3.

Output Encoding Methods

4.2.2.4.

SQL Injection Prevention

4.2.2.5.

Parameterized Queries

4.2.2.6.

ORM Security Features

4.2.3.

Browser Security Controls

4.2.3.1.

Content Security Policy

4.2.3.2.

CSP Directive Implementation

4.2.3.3.

Subresource Integrity

4.2.3.4.

SRI Hash Validation

4.2.3.5.

Secure Cookie Configuration

4.2.4.

Session Management

4.2.4.1.

Session Token Security

4.2.4.2.

Session Timeout Controls

4.2.4.3.

Cross-Site Request Forgery Protection

4.2.4.4.

CSRF Token Implementation

4.3.

Mobile Payment Security

4.3.1.

Secure Element Technology

4.3.1.1.

Embedded Secure Elements

4.3.1.2.

SIM-Based Secure Elements

4.3.1.3.

eSIM Security Features

4.3.1.4.

Secure Element Provisioning

4.3.2.

Host Card Emulation

4.3.2.1.

HCE Architecture

4.3.2.2.

Cloud-Based Secure Element

4.3.2.3.

Security Risks and Mitigations

4.3.2.4.

Token Provisioning

4.3.3.

Mobile Authentication

4.3.3.1.

Biometric Authentication Systems

4.3.3.2.

Fingerprint Recognition

4.3.3.3.

Facial Recognition

4.3.3.4.

Voice Recognition

4.3.3.5.

Behavioral Biometrics

4.3.4.

Mobile Application Security

4.3.4.1.

Application Sandboxing

4.3.4.2.

Operating System Security

4.3.4.3.

App Permission Management

4.3.4.4.

Code Obfuscation

4.3.4.5.

Runtime Application Self-Protection

4.4.

Backend Infrastructure Security

4.4.1.

Payment Gateway Security

4.4.1.1.

API Security Framework

4.4.1.2.

Authentication Mechanisms

4.4.1.3.

Rate Limiting and Throttling

4.4.1.4.

Input Validation

4.4.2.

Server and Database Hardening

4.4.2.1.

Operating System Hardening

4.4.2.2.

Database Security Configuration

4.4.2.3.

Patch Management Processes

4.4.2.4.

Vulnerability Management

4.4.3.

Network Security Architecture

4.4.3.1.

Network Segmentation Design

4.4.3.2.

Cardholder Data Environment Isolation

4.4.3.3.

Firewall Configuration

4.4.3.4.

Access Control Lists

4.4.4.

Monitoring and Detection Systems

4.4.4.1.

Intrusion Detection Systems

4.4.4.2.

Network-Based Detection

4.4.4.3.

Host-Based Detection

4.4.4.4.

Behavioral Analysis

4.4.4.5.

Anomaly Detection

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5. Threat Landscape and Attack Vectors