In my previous role, I managed multiple security incidents, including malware outbreaks and phishing attacks. I followed a structured incident response process: identification, containment, eradication, recovery, and lessons learned. For example, during a ransomware attack, I quickly isolated affected systems, coordinated with the IT team to restore data from backups, and implemented additional security measures to prevent recurrence. My experience also includes using SIEM tools like Splunk to monitor and analyze threats, ensuring timely and effective responses.

I prioritize incidents based on their potential impact and urgency. Critical incidents, such as data breaches or widespread malware, take precedence due to their severe consequences. I use a risk-based approach, assessing factors like data sensitivity, system criticality, and the scope of the threat. For example, during a DDoS attack, I focused on mitigating the attack to restore services, while simultaneously delegating less critical tasks like phishing email analysis to team members. Clear communication and collaboration ensure all incidents are addressed efficiently.

Containment involves isolating affected systems to prevent further damage. I start by disconnecting compromised devices from the network and disabling compromised accounts. For example, during a phishing incident, I revoked access to the targeted email account and reset credentials. I also implement temporary firewall rules or block malicious IPs. Documentation is crucial, so I maintain detailed logs of actions taken. This ensures a clear audit trail and supports post-incident analysis to strengthen defenses.

I stay informed by following cybersecurity blogs, attending webinars, and participating in industry forums like SANS and ISACA. I also subscribe to threat intelligence feeds and regularly review reports from organizations like CISA and MITRE. Additionally, I engage in continuous learning through certifications like CISSP and CEH. This proactive approach helps me anticipate emerging threats and adapt our incident response strategies to address evolving risks effectively.

Post-incident reviews are critical for improving future responses. I gather all relevant data, including logs, timelines, and actions taken, and analyze the root cause of the incident. I then identify gaps in our processes or tools and recommend improvements. For example, after a phishing attack, I suggested implementing advanced email filtering and conducting employee training. Finally, I document lessons learned and share them with the team to ensure continuous improvement in our incident response capabilities.