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Home / Incident communication to a client

Communicating an incident to a client

Communicate verified facts without creating new commitments.

Timeline, client scope, unknowns, evidence and follow-up actions are structured without substituting for the client's legal obligations.

What your context changes

Decision to be made

What indicates that you are affected

  • Confirmed or suspected incident
  • European client affected or concerned
  • Follow-up questionnaire received

What weakens the client relationship

  • Assumption presented as fact
  • Conflicting messages across teams
  • Client deadline mistaken for statutory deadline
  • Untracked follow-up commitments
Decision to be obtainedA factual file, coordinated responses, a request log and assigned follow-up actions.

The conclusion distinguishes communicable facts, unknowns still open and validations expected before the next message.

Review logic

From established facts to controlled, traceable communication.

The sequence follows the verified chronology; every change to the message remains linked to a new fact and its authorisation.

01Establish

Build a verified, sourced timeline.

02Delimit

Identify services, clients and data potentially affected.

03Coordinate

Align authorised spokespeople on the facts that can be disclosed.

04Track

Track questions, announced commitments and upcoming deadlines.

Client situation room

Separate what is established, unknown and communicable.

Demonstration example
ESTABLISHED FACTS, 09:40 UTCUnauthorised access confirmed on a support account.

Log, account and period identified.

UNDER VERIFICATIONPossible access to Client A's environment.

No conclusions before correlating logs.

NEXT COMMUNICATIONFactual point validated by the authorised managers.

Unknowns and the next deadline explicitly stated.

Items to be gathered

Prepare the file before widening the review.

  • The factual timeline, the affected services and the communications already issued
  • The deadline and the associated commercial decision
  • Commitments already communicated to the parties concerned
  • The individuals able to explain how things actually work
  • The available evidence, including where it is partial
  • Exceptions, incidents or remediations already known
ENTRYThe factual timeline, the affected services and the communications already issued
VIGILANCEAssumption presented as fact

Conflicting messages across teams

DECISIONA factual file, coordinated responses, a request log and assigned follow-up actions.

Indicative timeline

During the communication window

Update the message only once new facts have been established and authorised.

H0

The incident affects or concerns a European client; contractual clocks may already be running.

H0–H24

Factual file: what is known, unknown, under verification. Nothing goes out unless it has been verified.

Communication

Structured messages, consistent across teams, with no assumption disguised as fact and no improvised commitment.

Following

Follow-up questions prepared, commitments made tracked through to fulfilment, file ready for the post-incident phase.

Consistent intervention

Support for client incident communication

Coordinate the facts, evidence and follow-up commitments vis-à-vis the client. The timeline, potentially affected services and messages already issued help frame the facts, the validations and the next client touchpoint.