You agree to the privacy policy below, and the Privacy Policy for Substack, the technology provider.
Meridian Signal Privacy Policy
Effective date: September 20, 2026
About this policy
Meridian Signal is an independent publication operated by an individual publisher based in California, United States. “We,” “us” and “our” refer to that publisher.
This policy explains how we handle personal information associated with our publication at journal.meridiansignal.io and correspondence with readers.
For privacy questions or requests, contact contact@meridiansignal.io.
Information we receive
When you subscribe or interact with our publication, we may receive your email address, name or profile name, subscription preferences, subscription status, comments and other information you provide through Substack.
Substack may make readership and engagement information available through its publisher tools, including information about visits, email engagement and interactions with published content.
When you contact us, we receive your email address, message contents, attachments and other information you choose to provide. Please avoid sending sensitive personal information that is unnecessary for your inquiry.
How we use information
We use personal information as relevant to:
• Deliver research and publication updates you request.
• Manage subscriptions and communication preferences.
• Respond to questions, feedback, corrections and privacy requests.
• Understand readership and improve the publication.
• Moderate discussions and address spam, fraud or other abuse.
• Maintain technical operations and meet applicable legal obligations.
Service providers and disclosures
We use service providers to support publication delivery, subscription management, reader communications and technical operations. Personal information is processed as needed for these purposes, subject to applicable legal requirements.
Provider categories include publication platforms, email services, hosting, security and technical support services. Substack provides the platform for our journal, subscriptions and reader interactions.
We may also disclose information when required by law or reasonably necessary to address security incidents, protect legal rights or respond to legal claims.
Public comments and other public interactions may be visible to other people. Please consider what information you share publicly.
Substack and other services
Substack processes some information on our behalf and some for its own purposes. Its independent collection, use and disclosure of information are described in its Privacy Policy:
Our publication may contain links or embedded content from other services. When you interact with those services, their own privacy practices may apply.
Service providers may process information in the United States or other countries where they operate.
Cookies, analytics and tracking
Our journal operates on Substack, which may use cookies and similar technologies for functionality, security, analytics and other purposes described in its Privacy Policy.
We may use the readership and engagement information available through the platform to understand how readers interact with our publication.
We have not independently added advertising pixels or separate third-party tracking tools to the journal. We do not independently track readers across third-party websites.
Substack and providers of embedded content may collect information about activity over time and across websites. Their handling of browser “Do Not Track” signals and other privacy preferences is described in their respective policies. We do not control how those services respond to such signals.
Retention
Retention periods depend on the type of information and why it is needed. Relevant considerations include the duration of a subscription, outstanding correspondence, security needs, recordkeeping and applicable legal obligations.
Unsubscribing stops publication emails but does not automatically delete all information previously collected. Some records may remain for legal, security or administrative purposes.
Substack separately determines retention for information it processes for its own purposes.
Your choices and requests
You can unsubscribe using the link in publication emails and manage available account and subscription settings through Substack.
To request access to, correction of or deletion of personal information we control, email contact@meridiansignal.io. Depending on applicable law, you may also have rights to object to or restrict certain processing.
We may need to verify your identity before responding. We will handle requests in accordance with applicable law and explain any limitations that apply.
Requests concerning information Substack controls for its own purposes should be directed to Substack using the contact details in its Privacy Policy. Unsubscribing from Meridian Signal does not itself delete your Substack account.
Changes to this policy
We may update this policy as our publication, services or data practices change. We will post the revised policy on this page and update its effective date.
For material changes, we will provide a prominent publication notice or direct notification, as appropriate and as required by applicable law. Where a change requires consent or additional privacy choices, we will address those requirements before implementing that change.
Contact
For privacy questions or requests, contact: