Established according to RFC-2350.
This document contains a description of CERT-XMCO in according to RFC 2350. It provides basic information about the CERT-XMCO team, and the ways it can be contacted. It also describes its responsibilities and the services offered.
Version 1.1, created on 2018-12-20.
There is no distribution list for notifications.
This document is kept up-to-date at the location specified in 1.3.
Updates are also reported to the Trusted Introducer publicly accessible directory (see https://www.trusted-introducer.org/directory).
Should you have any questions regarding updates, please contact the CERT-XMCO email address.
The current and latest version of this document is available from CERT-XMCO's website. Its URL is:
Please make sure you are using the latest version.
This document has been signed with the CERT-XMCO's PGP key. The signature is available from CERT-XMCO's website. Its URL is:
See section 2.8 for more details.
This section describes how to contact CERT-XMCO.
CERT-XMCO is XMCO's commercial CERT/CSIRT team (Computer Emergency Response Team / Computer Security Incident Response Team).
CERT-XMCO 18 rue Bayard, 75008 Paris France
GMT+1(with Daylight Saving Time or Summer Time, which starts on the last Sunday in March and ends on the last Sunday in October)
If you need to notify us about an information security incident or a cyber-threat targeting or involving your company or XMCO, please contact us at email@example.com. This is a mail alias that relays mail to CERT-XMCO's analysts on duty.
PGP/GnuPG is supported to secure communication.
Consequently, the CERT-XMCO has a PGP key (bound to the firstname.lastname@example.org mail address), whose KeyID is
0x17587ED8 and whose Fingerprint is
9266 2FB7 9428 AE8D 7051 1A2C 8B7D 2EA7 1758 7ED8.
The current CERT-XMCO team-key can be found at https://www.xmco.fr/CERT-XMCO_0x17587ED8.asc. The key can also be retrieved from the usual public key servers, such as http://pgp.mit.edu/.
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This key shall be used whenever information must be sent to CERT-XMCO in a secure manner.
CERT-XMCO’s team leader is Charles DAGOUAT.
The team consists of XMCO's IT security analysts.
General information regarding CERT-XMCO can be found at the following URL:
CERT-XMCO is listed by the Trusted Introducer for CERTs in Europe, see:
The preferred method to contact CERT-XMCO team is to send an email to the email@example.com address, which is monitored during hours of operation.
Urgent cases can be reported by phone during regular office hours on +33 (0)1 47 34 30 38.
You can also reach the CERT-XMCO by phone if it is not possible (or not advisable for security reasons) to use email.
This section describes CERT-XMCO's mandate.
CERT-XMCO is a private CSIRT team delivering Security services, mainly in France.
Its purpose is two-folded:
CERT-XMCO's mission is to support its customer community to protect themselves against both intentional and opportunistic attacks that would hamper the integrity of their IT assets and harm their interests. The scope of CERT-XMCO's activities cover prevention, detection, response and recovery. CERT-XMCO is in charge of digital forensics and incident response (DFIR) activities.
CERT-XMCO will operate according to the following key values:
CERT-XMCO’s primary constituency is composed of all the elements of XMCO’s Information System: its users, its systems, its applications and its networks.
However, notwithstanding the above, CERT-XMCO's services are also delivered to a secondary constituency. As a commercial CSIRT, the CERT-XMCO also provides services to its Customers Community, who subscribed a Service Level Agreement support contract.
Current customers which are located in France and other countries are found among:
CERT-XMCO is part of XMCO: http://www.xmco.fr.
CERT-XMCO maintains contact with various national and international CSIRT and CERT teams (mainly throughout France), on an as-needed basis.
CERT-XMCO coordinates security incidents on behalf of its constituency, and only at its constituents' request.
Consequently, CERT-XMCO operates under the auspices of, and with authority delegated by its constituents.
CERT-XMCO primarily acts as an advisor regarding local security teams, and is expected to make operational recommendations. Therefore, CERT-XMCO may not have any specific authority to require specific actions. The implementation of such recommendations is not a responsibility of CERT-XMCO, but solely of those to whom the recommendations were made.
Generally, CERT-XMCO expects to work co-operatively with its constituents' system administrators and users.
This section describes CERT-XMCO's policies.
CERT-XMCO addresses all types of computer security incidents (cyber-attacks) which occur, or threaten to occur, in its constituency (see 3.2).
The level of support given by CERT-XMCO will vary depending on the type and severity of the incident or issue, its potential or assessed impact, the type of constituent, the size of the user community affected, and CERT-XMCO's resources at the time. Depending on the security incident’s type, CERT-XMCO will gradually roll out its services which include incident response and digital forensics. In all cases, some response will be made within two working days.
Incidents will be prioritized according to their apparent severity and extent.
All incidents are considered normal priority unless they are labelled EMERGENCY. CERT-XMCO itself is the authority that can set and reset the EMERGENCY label. An incident can be reported to CERT-XMCO as EMERGENCY, but it is up to CERT-XMCO to decide whether to uphold that status.
CERT-XMCO is committed to keep its constituency informed of potential vulnerabilities, and where possible, will inform this community of such vulnerabilities before they are actively exploited. This communication will be in the form of: email alerts, or phone calls under certain circumstances.
Note that no direct support will be given to end users. They are expected to contact their Security Operation Center (SOC) or internal CSIRT for assistance. The CERT-XMCO will support the latter people.
CERT-XMCO considers the paramount importance of operational coordination and information sharing between CERTs, CSIRTs, SOCs and similar bodies, and also with other organizations, which may aid to deliver its services or which provide benefits to CERT-XMCO's constituency.
Consequently, CERT-XMCO exchanges all necessary information with affected parties, as well as with other CSIRTs, on a need-to-know basis. However, neither personal nor overhead data are exchanged unless explicitly authorized. Moreover, CERT-XMCO will protect the privacy of its customers/constituents, and therefore (under normal circumstances) pass on information in an anonymised way only (unless other contractual agreements apply).
All incoming information is handled confidentially by CERT-XMCO, regardless of its priority. All sensible data (such as personal data, system configurations, known vulnerabilities with their locations) are stored in a secure environment, and are encrypted if they must be transmitted over unsecured environment as stated below.
CERT-XMCO supports the Information Sharing Traffic Light Protocol version 1.1 (ISTLP, see https://www.trusted-introducer.org/ISTLPv11.pdf). Information that comes in with the tags WHITE, GREEN, AMBER or RED will be handled appropriately.
CERT-XMCO operates within the current French legal framework.
CERT-XMCO protects sensitive information in accordance with relevant regulations and policies within France and the EU.
CERT-XMCO respects the sensitivity markings allocated by originators of information communicated to CERT-XMCO (“originator control”).
CERT-XMCO also recognises and supports the ISTLP version 1.1.
Communication security (which includes both encryption and authentication) is achieved using PGP primarily or any other agreed means, depending on the sensitivity level and context.
In particular, in CERT-XMCO's context of operations, the following communication security levels may be encountered:
This section describes CERT-XMCO's services.
These services are primarily delivered to CERT-XMCO's customers.
CERT-XMCO provides information on the threat landscape, published vulnerabilities, new attack tools or artifacts and security measures needed to protect its constituency’s Information System.
CERT-XMCO disseminates information on cyberattacks, disruptions, security vulnerabilities, intrusion alerts, malware, and provides recommendations to tackle the issue within its constituency.
Alerts and warnings may be passed on to other CERTs, CSIRTs, SOCs and similar bodies if deemed necessary or useful to them on a need-to-know basis.
CERT-XMCO is not responsible for the implementation of its recommendations. Incident resolution is usually left to the responsible administrators within the constituency. However, CERT-XMCO will offer support and advice on request.
CERT-XMCO performs pre-emptive security controls to detect potential breaches or vulnerabilities and misconfigurations that may be leveraged in cyberattacks. The security controls also check the compliance level of various systems and applications with the security policies.
This service is primarily delivered to CERT-XMCO's customers.
CERT-XMCO performs incident response for its constituency (as defined in 3.2).
CERT-XMCO handles both the triage and coordination aspects. Incident resolution is left to the responsible administrators within the constituency. However, CERT-XMCO will offer support and advice on request.
CERT-XMCO will assist IT Security team in handling the technical and organizational aspects of incidents. In particular, it will provide assistance or advice with respect to the following aspects of incident management:
CERT-XMCO's incident response service tries to cover at best all the ‘6 steps’: preparation, identification, containment, eradication, recovery and lessons to be learned.
Please remember that the amount of assistance available from CERT-XMCO will vary according to the parameters described in section 4.1.
CERT-XMCO internally develops security tools for its own use, to support its activities and to improve its services.
Even though these security tools are used to provide benefits to CERT-XMCO's constituency, they are not to be shared/used neither by members of its constituency or by members of the larger CERT, CSIRT and SOC communities.
No local form has been developed to report incidents to CERT-XMCO.
In case of emergency or crisis, please provide at least the following information:
While every precaution will be taken in the preparation of information, notifications and alerts, CERT-XMCO assumes no responsibility for errors or omissions, or for damages resulting from the use of the information contained within.