Sub-processors

Last Updated: March 2026

MatrixSentry uses the following third-party sub-processors to deliver our Services. This page lists all current authorized sub-processors, the data they process, and their processing locations.

Infrastructure & Data Services

Sub-processorPurposeData ProcessedLocation
Google Cloud PlatformCore infrastructure — compute, storage, databaseEmail content, metadata, threat intelligence, customer configurationUnited States
CloudflareAuthentication infrastructure, edge compute, access control databaseUser accounts, session data, customer configurationUnited States
Redis CloudManaged Redis — caching and deduplicationEmail metadata, processing state, content hashesUnited States
Confluent CloudManaged Kafka — event streamingEmail processing events, message routingUnited States

Identity Providers

The following providers are used for dashboard authentication via OpenID Connect (OIDC). They receive only a standard authentication request and return your name and email address. Dashboard login does not grant MatrixSentry access to your organization's email environment.

Sub-processorPurposeData ProcessedLocation
GoogleIdentity provider — dashboard loginName, email address (OIDC pass-through)N/A (pass-through)
MicrosoftIdentity provider — dashboard loginName, email address (OIDC pass-through)N/A (pass-through)
OktaIdentity provider — dashboard loginName, email address (OIDC pass-through)N/A (pass-through)

AI Providers (Optional)

The following providers are used only for the optional AI-assisted rule tuning feature. This feature can be disabled at the customer's request. When disabled, no data is sent to these providers. See our Privacy Policy for full details on data redaction and retention.

Sub-processorPurposeData ProcessedLocation
AnthropicAI-assisted threat analysis and rule tuningPII-redacted email metadata and contentUnited States
Google (Gemini API)AI-assisted threat analysis and rule tuningPII-redacted email metadata and contentUnited States

Changes to This List

We will notify customers of material changes to this sub-processor list at least 30 days in advance via email or the MatrixSentry dashboard.

Contact Us

To request a Data Processing Agreement (DPA) or for questions about our sub-processors, please contact us at:

MatrixSentry Support
support@matrixsentry.com