### Summary
The attackers have progressed to data exfiltration, indicating an escalation in the attack's impact. This phase involves the unauthorized transfer of sensitive data outside the network, coupled with file encryption activities.

### Key Indicators
- **Unusual Data Transfers**: Significant volumes of data have been detected moving to external IP addresses not commonly associated with regular business operations.
- **File Encryption Routines**: The presence of encrypted files and ransom notes has been confirmed, typical of Conti ransomware operations.

### Recommendations
- **Isolate Infected Systems**: Quickly isolate systems identified with encryption activity to prevent further spread.
- **Data Loss Prevention (DLP) Measures**: Implement DLP technologies to monitor and control outbound data flows.
- **Engage Law Enforcement**: Notify relevant authorities for assistance and to comply with legal obligations.

### Next Steps
Focus on incident response and recovery, including system restoration and reinforcement of security measures to prevent recurrence. Prepare communication plans for internal and external stakeholders regarding the breach and its implications.