During an ongoing analysis of security incident reports, you discover a pattern indicating a potential breach of sensitive customer data. What is the MOST appropriate initial step to ensure proper stakeholder engagement?
Start deploying patches to potentially affected systems without waiting for further instructions.
Immediately send out a customer notification to inform them of the potential data breach.
Inform the security team and senior management to coordinate the subsequent actions.
Engage external cybersecurity consultants to assist with the breach before informing any other parties.