The classic trap
Recital 143 reminds that NIS 2 must be applied in accordance with the Charter of Fundamental Rights: private life, data protection, freedom to conduct a business, right to property, effective remedy, presumption of innocence. In practice, the ILR sanctions entities that deploy disproportionate cybersecurity measures (mass employee surveillance, account blocking without due process, excessive log retention) in the name of NIS 2, without articulating them with the GDPR and labour law. Recital 143 is also a lever for recipients of services (clients, users, hospital patients) who hold an effective remedy when a NIS 2 measure causes them harm.
The concrete trade-offs this recital imposes
- Every security measure (endpoint EDR, DLP, behavioural analytics, mail scanning) must be backed by a documented proportionality analysis, cross-checked with a GDPR DPIA when personal data is processed.
- Internal sanctions (access revocation, suspension of an administrator suspected of compromise) must respect due process and the presumption of innocence: no permanent ban before investigation.
- Incident notifications to the ILR must not unnecessarily expose personal data of victims or third parties: minimisation principle.
- Clients and users must have an effective complaint channel when a NIS 2 measure affects them (service cut, account block, onboarding refusal based on excessive risk score).
- Security log retention must have a justified duration, not unlimited storage for operational convenience.
How Luxgap automates this risk
Our Luxgap Proportionality Gate turns every new cybersecurity measure you envisage (EDR rollout, DLP rule, client risk scoring, automatic blocking) into a proportionality dossier that is opposable before activation. The tool intercepts configuration changes via the APIs of Microsoft Defender, CrowdStrike, Wazuh, Azure Sentinel and Active Directory, and triggers an LLM agent that confronts the measure with the Charter rights cited in recital 143.
- Detects every new security rule pushed to the IS and places it in documentary quarantine until the proportionality analysis is validated.
- Generates the NIS 2 / GDPR / labour law triptych for each measure: purpose, legal basis, impact on employees and clients, less intrusive alternatives assessed.
- Classifies high-risk measures (behavioural surveillance, client scoring, automatic blocking) and triggers the adversarial procedure before any internal sanction.
- Produces the effective remedy channel for service recipients: published form, handling workflow, response deadline, opposable traceability.
- Calculates the justified retention duration of security logs by event type and alerts on excessive retention configured in Sentinel or Splunk.
- Produces a timestamped PDF report, cryptographically sealed, opposable to the ILR and the CNPD during a joint NIS 2 / GDPR audit.
Available as a complement to a Luxgap CISO or DPO mandate or as a dedicated SaaS module depending on your scope. Request a tailored quote and our teams will prepare a demonstration on your real security rules, with a free 48h white audit to measure your exposure before any engagement.
