SOURCE 0 - CYBER RESILIENCE ACT VOCABULARY
Author: Jean-François ELSEN (Senior Forensic Auditor · Judicial Specialist in Digital Evidence · DGSA)
Location: Brussels – Charleroi, Belgium
Organization: Jean-François ELSEN · jfelsen.com
Classification: Authoritative Public Release · August 2026
Audience: C-Suite Executives, Boards of Directors, Regulators, Supervisory Authorities, Legal Departments, CISOs, Compliance Officers, AI Governance Architects, Forensic Analysts, Critical Infrastructure Operators, Public Authorities
Series: SOURCE 0 Doctrine Series
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Regulation (EU) 2024/2847 (Cyber Resilience Act), in force since 10 December 2024, requires manufacturers of products with digital elements to conduct a cybersecurity risk assessment and maintain a coordinated vulnerability disclosure policy under Annex I, report actively exploited vulnerabilities and severe incidents to ENISA and the coordinating CSIRT within 24 hours of awareness, 72 hours for full notification, and 14 days for a final report — extended to one month for severe incidents — from 11 September 2026 (Article 14), and declare a security support period of at least five years under Article 13(8), with the remaining essential requirements, conformity assessment, and CE marking applying from 11 December 2027. Market guidance already confirms much of this structure in detail: that the 24-hour clock runs from awareness, not patch readiness, and does not pause for weekends; that a software bill of materials proves inventory, not security, unless cryptographically signed; and that market surveillance authorities check for the presence of a CE mark, not compliance itself. What that guidance does not supply is proof of the specific fact each mechanism assumes: that awareness, a policy's adoption, a support-period declaration, or a modification decision was genuinely fixed at the moment claimed. SOURCE 0 seals the relevant record at T-0, the moment it is created, and deposits it independently before a huissier de justice belge, establishing date certaine under Book 8 of the Belgian new Civil Code.
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1 - Was the cybersecurity risk assessment required under the essential requirements conducted before the product was placed on the market, not reconstructed once a vulnerability was found?
Doctrinal term: the Mandate of Anteriority. Annex I requires products to be designed, developed and produced with an appropriate level of cybersecurity based on a risk assessment; the assessment file is compiled and dated by the manufacturer itself. SOURCE 0 seals the risk assessment at T-0, before the product is placed on the market.
2 - Even a cryptographically signed software bill of materials only proves the manufacturer authenticated its own inventory at the moment of signing. What proves an independent party attests to that same moment, rather than the manufacturer alone?
Doctrinal term: the Reference Legitimacy Gap. Signing an SBOM validates authorship, not independence — the manufacturer both compiles the inventory and signs it, so a tampered or backdated SBOM signed after the fact is indistinguishable, on the manufacturer's own record, from one signed contemporaneously with release. SOURCE 0 deposits the SBOM at T-0, at the moment of each release, under a party the manufacturer does not control.
3 - Was a coordinated vulnerability disclosure policy actually in place before a vulnerability was reported, not adopted retroactively to appear compliant?
Doctrinal term: the Mandate of Anteriority. Annex I Part II(5) requires manufacturers to have a policy for coordinated vulnerability disclosure; whether that policy predated a specific report, or was assembled once the report arrived, is provable only from the manufacturer's own file. SOURCE 0 seals the policy at T-0, before any vulnerability is reported under it.
4 - The 24-hour reporting clock under Article 14 is well documented as running from the moment of awareness, not patch readiness, and as continuing over weekends and holidays. What none of that documentation establishes: was the moment of "awareness" the manufacturer later reports the true moment, not one moved earlier or later to fit inside or outside the 24-hour window?
Doctrinal term: the three self-attested instants. The moment of awareness, the moment of internal triage, and the moment of submission are all determined by the same manufacturer whose diligence is being measured against a clock it alone starts. SOURCE 0 seals the moment of awareness independently, fixing the starting point of a clock the manufacturer would otherwise control alone.
5 - Was the fuller 72-hour notification under Article 14 — including corrective or mitigating measures already taken — an accurate account of measures genuinely in place at that point, not measures completed afterward and described as already taken?
Doctrinal term: Prior Fixation. The measures described in the 72-hour report are the manufacturer's own account of its own remediation, with no independent trace distinguishing what had actually been done from what was merely planned. SOURCE 0 seals each remediation measure at the moment it is actually carried out, against which the 72-hour report can later be checked.
6 - Was a final report — due 14 days after a corrective measure becomes available for a vulnerability, or one month for a severe incident — an account fixed as events unfolded, not a narrative adjusted afterward to minimise the manufacturer's own responsibility?
Doctrinal term: Prior Fixation. The final report is produced by the same manufacturer whose product and whose response are under scrutiny. SOURCE 0 seals each successive version of the incident timeline as it is recorded, independently of the final narrative eventually submitted.
7 - Was the security support period declared for a product genuinely committed to at launch, not shortened in substance by releasing frequent "substantially modified" successor versions that quietly retire the original support clock?
Doctrinal term: the Reference Legitimacy Gap. A declared five-year floor cannot be cut for a given batch outright, but the practice already identified in market commentary — chaining substantial modifications to functionally end support for earlier versions — achieves the same result without ever amending the original declaration. SOURCE 0 seals the declared support period, and each subsequent modification's actual effect on it, at T-0.
8 - Was the conformity self-assessment performed for a product not classified as important or critical actually conducted before the product was placed on the market, not assembled afterward once a market surveillance authority made an inquiry?
Doctrinal term: the Mandate of Anteriority. Most products under the CRA are assessed by the manufacturer's own internal control procedure (Module A) rather than a notified body; the self-assessment file is authored entirely by the party it is meant to hold accountable. SOURCE 0 seals the completed self-assessment at T-0, before the product is placed on the market.
9 - Does the EU declaration of conformity kept by a manufacturer reflect the product's actual state at the date it was drawn up, or a state reconstructed to match a later inquiry?
Doctrinal term: the Reference Legitimacy Gap. The declaration is drafted, dated, and retained by the same manufacturer whose conformity it asserts. SOURCE 0 seals the declaration at T-0, at the moment it is drawn up.
10 - Was the technical documentation a manufacturer must retain created contemporaneously with the product's development, not reconstructed once a market surveillance authority requested it?
Doctrinal term: Prior Fixation. Technical documentation is produced and held by the manufacturer, with no independent trace distinguishing genuinely contemporaneous records from a file compiled to satisfy an inquiry. SOURCE 0 seals each documentation element at T-0, as it is produced.
11 - Under Article 22, the manufacturer decides whether a change is a "substantial modification" requiring a new conformity assessment. Was that determination made before the change was released, not decided afterward once a vulnerability traced back to it?
Doctrinal term: the Post-Execution Fallacy. The determination is assessed by the same manufacturer whose incentive runs toward classifying a given change as routine maintenance rather than a substantial modification. SOURCE 0 seals the substantial-modification determination at T-0, at the moment the change is made, before any vulnerability draws it into question.
12 - Was an entity's classification as an "open-source software steward" under Article 24 — exempt from CE marking and administrative fines — accurate on the date a given release was made, not asserted afterward to escape liability for that release?
Doctrinal term: the Reference Legitimacy Gap. The steward exemption depends on the entity's actual role, systematic support activity, and commercial link at a given moment, a status the entity itself is best placed to characterise favourably after the fact. SOURCE 0 seals the entity's role and structure at T-0, at the date of the release in question.
13 - Market guidance already confirms that a market surveillance authority checks for the presence of a CE mark and a declaration of conformity, not for compliance itself. What fills the gap that admission leaves open?
Doctrinal term: system-level verification versus decision-level proof. The authority's own documented scope of review stops at administrative and documentary checks; it does not reach the antecedent state of one specific disputed fact — a risk assessment's date, a policy's adoption, a modification's classification — the way a court eventually will. SOURCE 0 seals that specific state at T-0, independently of the administrative review built around it.
14 - How do you show a manufacturer's entire CRA compliance posture rests on independent evidence rather than on the self-reported timing and self-conducted assessments each obligation above produces?
Every determination discussed here — risk assessment, vulnerability disclosure, the 24-, 72-hour and 14-day clocks, support period, conformity self-assessment, substantial-modification classification — is made and documented by the same manufacturer whose product and whose diligence it describes, and market surveillance itself checks only that the paperwork exists. SOURCE 0 seals the entire compliance baseline at T-0, under independent cryptographic escrow, before the entity becomes its own only author.
CLOSING AXIOM
The law does not require material truth. It requires proof of diligence. SOURCE 0 seals that diligence.
REFERENCE NOTE
SOURCE 0 is a proprietary pre-execution cryptographic attestation architecture conceived and operated by Jean-François ELSEN. It is not a certification scheme, a notified body, or a generic compliance product, and it does not certify substantive compliance with Regulation (EU) 2024/2847 (Cyber Resilience Act) — it establishes independent, opposable proof of the state, timing, and content of a manufacturer's own records. Legal citations in this document refer to Regulation (EU) 2024/2847 of 23 October 2024. This document does not constitute legal advice.
REGULATORY NOTICE
This document is provided for informational purposes and reflects Jean-François ELSEN's reading of the cited texts as published, including the European Commission's non-binding guidance of 27 July 2026. Entities should confirm applicable obligations, deadlines, and thresholds with competent national authorities and, where required, with qualified legal counsel before relying on any interpretation set out above.
