---
title: "Protect office networks"
description: "Protect office networks, family Build, NIS2 Art. 21(2)(e)"
url: https://www.alt-f1.be/en/table/nt/
organization: ALT-F1 SRL, Brussels (VAT BE 0830.560.718)
---

# Protect office networks

Short label: NETWORK

Family: Build · NIS2 Art. 21(2)(e)
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## Meaning

Separate groups of devices and control the connections between them using the office firewall.

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## Why it matters

A problem on a visitor’s device or printer should not give unrestricted access to business systems.

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## What you can do

Map devices and required connections. Separate guest access, printers and servers, and review remote access.

## Services that can help

Device Shield includes the agreed on-premises firewall configuration and management. The network design and exceptions are documented with you.

- [Device Shield](https://www.alt-f1.be/en/device-shield.md)

## Official reference — NIS2 Art. 21(2)(e)

> 2. The measures referred to in paragraph 1 shall be based on an all-hazards approach that aims to protect network and information systems and the physical environment of those systems from incidents, and shall include at least the following:
>
> — Directive (EU) 2022/2555 (NIS2), Art. 21(2)

> (e) security in network and information systems acquisition, development and maintenance, including vulnerability handling and disclosure;
>
> — Directive (EU) 2022/2555 (NIS2), Art. 21(2)(e)

**What this reference concerns:** Security must be built in when you buy, build or maintain systems, and known vulnerabilities must be handled and disclosed.

[Read the article on EUR-Lex](https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32022L2555#art_21) · Official text, quoted from the Official Journal of the EU