The Cyber Security Review | Tuesday, March 19, 2024
Cross-functional IR teams can quickly detect, contain, and recover from cyberattacks, notify stakeholders, and restore vital services.
FREMONT, CA: State and local governments prioritize cybersecurity. Even the most effective defenses fail in the face of increasing attacks. If breaches are virtually unavoidable, the most effective method to reduce their impact and cost is with an incident response (IR) plan and a trained team to implement it. Here are some best practices for state and local governments to implement to enhance their response to cybersecurity incidents. State and local governments have experienced an increase in both the complexity and impact of intrusions. The number of ransomware attacks against state and local administrations increases.
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A cyberattack could grant intruders network access, disable servers, halt emergency response systems, and expose sensitive data, among other things. An effective incident response program can aid in mitigating damage and accelerating recovery following a security incident. Cross-functional IR teams can detect, contain, and recover from cyberattacks, communicate with affected stakeholders, and restore essential services quickly and efficiently. The incident response begins well before an actual occurrence, relying on a robust IT infrastructure, continuous monitoring to detect security threats, and a robust, and ongoing employee security training program.
The IR team should include management, legal, human resources, public relations, and customer service personnel, among others. Before an incident occurs, the incident response plan must be rigorously tested to ensure that it covers all pertinent activities and that team members are familiar with it. Exercises are frequently used for testing, in which team members walk through the plan and ensure they are comfortable with their duties. Unscheduled security drills can rapidly reveal plan flaws. Regardless of the program's comprehensiveness, responding to an incident requires the faithful execution of all aspects.
When a cyber incident is discovered, incident response (IR) teams may prioritize containment (to limit system damage) and eradication (to remove and restore compromised systems). They are only permitted to conduct a preliminary investigation into the nature of the event. An in-depth examination of how the incident occurred and precisely where existing security measures have failed takes a secondary seat to resume normal operations. The essential step of conducting root cause analysis may get postponed, only to never get performed. The team should document all actions performed during an incident. The information can disclose the causes of the incident and assist in determining how to enhance response efforts.
The application of modern technologies can significantly enhance incident response. They are ensuring that the retention periods for firewall and intrusion detection logs are greater than 30 days to comprehensively analyze cyber incidents and determine their root cause. The IR plan should be updated every six months to account for new categories of security threats and attacks against state and local governments. The efficiency of incident response (IR) teams by integrating with other security tools and orchestrating them to facilitate complex attack responses.
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