The Role of Collective Cyber Defense in NIS2 Compliance: Building a Cyber Phalanx
With the NIS2 Directive enforcing stringent security requirements on essential and important entities within the EU, the responsibility of cybersecurity has become an organization-wide priority. While the Chief Information Security Officer (CISO) plays a pivotal role in strategizing and leading the defense, achieving compliance and safeguarding the company against sophisticated cyber threats cannot rest solely on their shoulders. It requires a collective effort, akin to a cyber phalanx, where every employee stands united in defense.
A CISO alone cannot implement or sustain NIS2 compliance. NIS2 directives require that a company adopts a cybersecurity approach where every department, role, and individual plays a part in protecting the organization. Here’s why every employee’s involvement is crucial and the key measures each must embrace to fortify the organization’s defenses.
Why a Unified Defense Is Essential for NIS2 Compliance
The NIS2 Directive expands the scope of cybersecurity obligations, emphasizing not only technical defenses but also procedural and organizational measures to improve resilience across the board. This means that a compliant organization is not just equipped with firewalls and threat detection software, but also fosters a culture of security awareness and proactive engagement across all levels. For a company to stand strong against cybersecurity threats, its employees must work as a unified defense force, akin to a Greek phalanx formation, where each member’s participation strengthens the organization as a whole.

Building the Cyber Phalanx: Essential Measures for Employees
Each employee, regardless of their role, plays a unique part in this defensive formation. Here are the critical measures and actions employees need to adopt to create a secure, resilient company that can meet NIS2’s stringent standards.
1. Security Awareness Training
- Objective: Employees must recognize and respond appropriately to cyber threats.
- Action: Regularly participate in training sessions on recognizing phishing, social engineering, and other forms of cyberattacks.
- Outcome: With awareness of common attack methods, employees can avoid pitfalls that often lead to breaches, strengthening the first line of defense.
2. Adherence to Acceptable Use Policies
- Objective: Ensure employees use company assets responsibly and securely.
- Action: Familiarize themselves with and consistently follow policies on device use, internet browsing, data access, and handling.
- Outcome: Helps reduce risks from unapproved applications, unauthorized access, and data misuse, maintaining compliance with NIS2 guidelines on asset security.
3. Incident Reporting Protocols
- Objective: Enable rapid detection and response to security incidents.
- Action: Report suspicious activities, potential security events, and system anomalies immediately to the security team.
- Outcome: Creates a proactive reporting culture, which helps in early identification of incidents and limits damage, supporting NIS2’s focus on swift incident response.
4. Compliance with Access Controls
- Objective: Protect sensitive systems and data through controlled access.
- Action: Only use accounts and privileges necessary for their role, adhere to password policies, and avoid sharing credentials.
- Outcome: Limits access to sensitive information, reduces insider threats, and supports NIS2’s access management requirements.
5. Use of Multi-Factor Authentication (MFA)
- Objective: Add a layer of security to account access.
- Action: Enable MFA on all applicable accounts and refrain from bypassing it.
- Outcome: Reduces the risk of unauthorized access by adding a second verification step, aligning with NIS2 requirements for authentication controls.
6. Data Protection Practices
- Objective: Protect data integrity and confidentiality.
- Action: Ensure data is stored, transmitted, and disposed of securely; follow data handling guidelines, especially for sensitive information.
- Outcome: Maintains data confidentiality and integrity, supporting the NIS2 focus on data protection and privacy.
7. Participation in Security Exercises
- Objective: Familiarize employees with incident response procedures.
- Action: Actively engage in drills and simulations organized by the CISO team, including simulated phishing campaigns and incident response tabletop exercises.
- Outcome: Improves individual and collective response skills, ensuring a coordinated reaction to real-world incidents and fulfilling NIS2’s requirement for regular testing and simulation.
8. Compliance with Role-Specific Security Policies
- Objective: Address unique security risks associated with specific roles.
- Action: Follow tailored policies and procedures relevant to their role (e.g., additional controls for IT administrators, secure coding practices for developers).
- Outcome: Provides specialized protection and ensures all departments meet NIS2 requirements for organizational cybersecurity.
9. Secure Communication Practices
- Objective: Protect information in transit.
- Action: Use approved channels and encrypted messaging tools for sensitive communications.
- Outcome: Reduces the risk of data interception and aligns with NIS2’s requirements for secure information exchange.
The Collective Outcome: A Resilient Cyber Phalanx
When every employee upholds these measures, the organization transforms into a well-coordinated defense against cyber threats, much like a phalanx. In this formation, no individual stands alone; each person’s adherence to security protocols strengthens the entire company’s cybersecurity posture. This unified approach is essential for meeting the NIS2 Directive’s requirements and for protecting against increasingly complex cyber threats.
While the CISO directs and oversees these efforts, achieving and maintaining compliance with NIS2 relies on every employee’s engagement and commitment to cybersecurity. The company as a whole becomes resilient, proactive, and prepared to face evolving challenges—a true cyber phalanx in the face of digital adversaries.
Written by Danny Zeegers and Jeeves d’AI