Complaints to the Chief of CSE

Making a Complaint

You may submit a complaint in writing to the Chief of the Communications Security Establishment (CSE) about any activity carried out by CSE. In your letter, please include the following:

  • your contact information (i.e., your full name, mailing address, phone numbers, and email address);
  • a concise, clear, and detailed description of the nature and circumstances of your complaint. Please include the names or positions of all individuals involved in the matter, the dates and locations of relevant events, and any other factors that you deem to be relevant;
  • a description of your desired positive outcome (i.e., what you would like CSE to do to resolve the concerns that you have raised);
  • any relevant documents including any correspondence that you have had with CSE regarding this matter; and
  • your signature and the date of signature.

Please send your written complaint to the Chief of CSE at the following address:

Communications Security Establishment
P.O. Box 9703,
Ottawa, ON
K1G 3Z4

CSE is committed to providing a response to a written complaint within 60 days of the receipt of the complaint.

Some complaints may be resolved quickly; however, the degree of complexity of an investigation into a complaint may require a longer period for a response. In cases that are not resolved quickly, we will keep you informed of our progress.

Privacy Notice Statement

The Communications Security Establishment (CSE) is committed to protecting the privacy rights of individuals, which includes safeguarding the personal information that you provide to CSE.  The personal information that you provide is collected to process and investigate your complaint under the authority of the CSE Act and/or other legislative authorities related to your complaint.

Failure to provide some personal information requested may result in CSE being unable to process your complaint. Personal information will be collected, used and retained in accordance with the Privacy Act. Personal information collected may be used and/or disclosed for the purpose for which the information was obtained or is consistent with that purpose.

Protecting your personal information involves the use of appropriate administrative, technical, and physical security safeguards.  These measures are employed by CSE to protect your personal information against loss or theft; unauthorized access, use, or disclosure; as well as unauthorized modification or destruction.  The personal information that you provide is retained in the Executive Correspondence – CSE PSU 902.  You have a right of access to, correction and protection of, your personal information under the Privacy Act.  You may avail yourself of these rights by contacting CSE’s Access to Information and Privacy Coordinator at  You are also entitled to contact the Office of the Privacy Commissioner of Canada concerning the handling of your personal information.