Containment Techniques Based on Incident Type

The containment strategies will vary based on the type of cybersecurity incident being handled. Different attack methods require different containment approaches. Below are common incident types and their corresponding containment techniques:

Malware and Ransomware Attacks:

• Isolate Infected Machines: Disconnecting infected machines from the network is essential to prevent the malware from spreading. Ransomware attacks can often propagate across networks, encrypting files, and affecting other systems.
• Stop the Execution of Malicious Code: For ransomware, stopping the execution of malicious code or blocking its command-and-control (C2) servers is a priority.
• Prevent Lateral Movement: Implementing network segmentation and controlling access to critical assets helps limit lateral movement by the attackers.

Data Breach or Insider Threats:

• Restrict Access to Sensitive Data: In cases of data breaches or insider threats, restricting access to sensitive data is crucial. This can be done by revoking credentials, limiting permissions, or disabling access to compromised systems.
• Monitor Data Exfiltration: It is essential to monitor the network for signs of data exfiltration and block any outgoing traffic that matches known patterns of data theft.

Denial-of-Service (DoS) Attacks:

• Implement Rate Limiting: Rate limiting and traffic filtering can help prevent DoS attacks from overwhelming network resources.
• Block Malicious IPs: In cases of Distributed Denial-of-Service (DDoS) attacks, blocking the malicious IPs or using DDoS mitigation services is necessary to prevent further disruption.
• Use Web Application Firewalls (WAFs): WAFs can help protect websites and applications by filtering malicious HTTP requests.

Social Engineering and Phishing Attacks:

• Disabling Compromised Accounts: If an employee’s account has been compromised through phishing, disabling the account and forcing a password reset is a priority.
• Educating the Workforce: Rapid communication with all employees to raise awareness about the phishing attempt can prevent further successful attacks.

Each type of incident requires tailored containment strategies to mitigate the threat effectively.