23/05/2026
Is your crisis communication physically separated?
When an incident hits, the NIS2 Directive requires organizations to stay operational. That includes coordinating actions and communication when standard infrastructure is no longer available.
And this is where many setups break.
A common risk is a Single Point of Failure - when a monitoring system tries to send alerts over the same network that has just failed. At the exact moment an alert matters most, it never reaches the people who need to act.
This is why physical separation and Out‑of‑Band (OOB) communication are essential.
In crisis scenarios - such as ransomware‑driven network paralysis, DDoS attacks, or BGP configuration errors - IP communication is disrupted first. Email, dashboards, and internal alerts disappear along with the network.
💡 Example:
A ransomware attack paralyzes the internal network, cutting the IT team off from standard alerts. The monitoring system detects critical anomalies but can’t send notifications through the compromised infrastructure. Because an OOB channel doesn’t share any points of failure with the internal network, the alert still reaches administrators via the GSM network - within the first minute of the incident.
That short time window allows teams to isolate systems immediately and limit the impact.
This is what operational continuity looks like in practice: not preventing incidents, but making sure critical information reaches the right people when standard channels fail.
SMSEagle supports this approach as a hardware gateway, delivering the most critical parameters - such as server‑room temperature, UPS status, or intrusion attempts - directly to a mobile phone, without relying on IP connectivity.
The article linked below explains how OOB communication supports business continuity and incident response under NIS2 ⬇️
