### Overview
The initial alert identified a compromise via a third-party library, suggesting a supply chain attack. This indicates a breach at the level of software dependencies, commonly exploited by Magecart groups.

### Technical Details
- **Vulnerable Library**: The breach originated from a popular JavaScript library commonly used for e-commerce platforms.
- **Attack Vector**: The attackers injected malicious code into the library before distribution, affecting all sites utilizing the compromised version.

### Recommendations
- **Immediate Actions**: Remove the compromised library version from your systems and monitor for any unusual activity.
- **Long-term Strategy**: Implement a robust dependency tracking system and regularly audit third-party code for vulnerabilities.

### Next Steps
Prepare for potential **Code Injection** activities, as malicious scripts are likely to be executed on compromised websites.