Overview A Cybersecurity Specialist or Security Analyst is responsible for protecting an organization s computer systems networks and data from cyber-attacks unauthorized access and security breaches They monitor detect analyze and respond to security threats using tools policies and best practices Key Responsibilities 1 Monitoring Threat Detection Monitor systems servers networks and security tools for suspicious activity Analyze alerts and logs from SIEM tools e g Splunk QRadar Sentinel Detect malware intrusion attempts policy violations and anomalies 2 Incident Response Investigate security incidents and breaches Determine root cause and impact of attacks Take immediate action to contain and eradicate threats Prepare incident reports and post-incident reviews 3 Vulnerability Management Perform vulnerability scanning using tools like Nessus Qualys Identify and prioritize weaknesses in systems and networks Recommend or implement patches updates and configurations 4 Security Tools System Hardening Manage firewalls IDS IPS endpoint protection antivirus and SIEM systems Configure and maintain security controls Harden servers applications and networks against attacks 5 Risk Assessment Compliance Assess security risks and propose mitigation strategies Ensure compliance with standards ISO 27001 NIST PCI-DSS GDPR etc Maintain documentation of security policies and procedures 6 Security Awareness Train employees on protected cyber practices Conduct phishing simulations Promote a security-first culture