I believe, the following plan/executional flow could improve the chances of mitigating the future impacts of this kind: 1) Identifying and analysing the infrastructural end points and user access patterns which might have compromised in the current breach. 2) A thorough review and understanding on the breach pattern to evaluate the digital foot print of the vulnerability. 3) Explore and standardise the security aspects of the external applications which are integrated in your application schema. 4) Seeking necessary assistance from the cloud service provider to embed additional monitoring and safety checks on the current infrastructure.

1. Strengthen Identity and Access Management: Enforce MFA, use role-based access control (RBAC), and conduct regular access reviews. 2. Improve Network Security: Segment your network, restrict access with firewalls, and use VPNs for secure connections. 3. Encrypt Data: Use encryption for data at rest and in transit; manage keys securely with cloud-native tools. 4. Continuous Monitoring: Deploy SIEM and IDS tools for real-time threat detection, and automate incident response. 5. Regular Testing: Perform vulnerability scans and penetration testing to identify and close security gaps. 6. Backups and Disaster Recovery: Maintain frequent backups and a disaster recovery plan to minimize downtime during incidents.

After a cloud infrastructure breach, it's essential to act swiftly while focusing on long-term security improvements. Begin with a thorough forensic investigation to identify the root cause and contain the breach. Moving forward, adopt a Zero Trust Architecture, ensuring that every access attempt is verified regardless of origin. Strengthen account security with multi-factor authentication (MFA) and encrypt data both in transit and at rest to protect sensitive information. Automate security patches and use continuous monitoring tools to detect vulnerabilities in real-time. Additionally, foster a security-first culture by providing regular employee training to mitigate human error.

After a breach, it is important to deploy strong security measures to avoid future attacks and protect your cloud infrastructure. Here are important steps to follow: 1. Analyze the breach to identify vulnerabilities. 2. Update security policies and access controls. 3. Enable Multi-Factor Authentication (MFA). 4. Conduct regular security assessments 5. Encrypt sensitive data 6. Limit user access (least privilege). 7. Monitor for suspicious activity. 8. Create an incident response plan. 9. Train employees on security practices. 10. Back up data regularly.