Frameworks · BIO2

BIO2: the baseline you must be able to show.

The Baseline Informatiebeveiliging Overheid 2 is the information security framework for Dutch central government, municipalities, provinces and water authorities, built on ISO 27001 and ISO 27002. Since the Cybersecurity Act it is no longer self-regulation for public bodies under that act but a legal obligation. In short: implement the government measures and demonstrate their design, implementation and operating effectiveness.

Statusversion 1.2 adopted by the OBDO on 23 September 2025; version 1.3 of 9 January 2026 published in the Government Gazette of 5 March 2026; legally required since 15 August 2026 through the Cybersecurity Regulation for the government sector
Who it applies toall layers of Dutch government: central government, provinces and municipalities through the Cybersecurity Regulation for the government sector, water authorities under the responsibility of the Ministry of Infrastructure and Water Management; outside the Cbw, BIO2 remains binding self-regulation
Supervisionthe RDI on behalf of the Minister of the Interior for ministries, municipalities, provinces, inter-municipal cooperation bodies and independent public bodies, the ILT for water authorities; municipalities report on this through ENSIA, which in 2026 formally still runs on BIO 1.04
Relationshippart 1 follows ISO 27001:2023, part 2 ISO 27002:2022; BIO2 does not replace those standards but fills them in for government, and is the minimum interpretation of the Cbw duty of care; NEN 7510 measures may substitute where needed and demonstrably equivalent, and in practice there is substantial overlap with CIS

What it requires

Three obligations, one outcome: demonstrable.

ISMS A management system per ISO 27001

You run a working information security management system per ISO 27001:2023 and work risk-driven: carry out risk assessments, keep them current and record what you do and do not apply.

MEASURES Mandatory government measures

You apply the ISO 27002:2022 controls according to risk, but the government measures in BIO2 are a mandatory minimum. You implement them regardless of your own risk assessment, from access rights to patch management and hardening.

EVIDENCE Design, implementation and operating effectiveness

For every measure you demonstrate design, implementation and operating effectiveness. BIO2 names self-assessments, audits and penetration tests for that; all of them require measurable systems, not policy documents.

How you make it demonstrable

Measured, not claimed.

Easy2audit measures your systems and accounts against the technical controls of the government measures from part 2 of BIO2 under chapter 8 of ISO 27002:2022, the technological controls, and the ISO 27002 controls they give substance to, and scores the same scan against the other frameworks as well.

In Easy2audit, BIO2 follows the structure of ISO 27002:2022: organisational (5), people (6), physical (7) and technological (8), with the Dutch measure names from the baseline. Per measure, from 5.15 access control to 8.22 network segregation, you see the measured settings and which systems deviate.

Controls
05Organisational controls77.6%
05.09Inventory of information and other associated assets71.2%
05.15Access control80.8%
05.16Identity management88.4%
05.18Access rights75.3%
06People controls73.9%
06.03Information security awareness, education and training84.6%
06.07Remote working66.1%
07Physical controls86.8%
07.10Storage media86.8%
08Technological controls72.4%
08.05Secure authentication76.9%
08.08Management of technical vulnerabilities65.2%
08.15Logging71.6%
08.22Network segmentation68.3%

demo environment · sample scores · a selection, the application covers the full framework

Traceableevery finding traceable to system and setting
Reproduciblesame scan, same outcome: evidence an auditor can verify
No duplicate work6 frameworks from one scan, no separate projects per standard

Also measured

NIS2 / CbwNEN 7510 · healthcareDORA · financial sectorISO 27001/27002CIS Benchmarks

also available: NIST benchmarks · ISA 315 reporting for the financial statement audit

See how you make BIO2 demonstrable.

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