ShieldSync
Legal

Sub-processors

Every company that processes personal data on our behalf, under GDPR Article 28. Last updated 2 September 2026.

ShieldSync is pre-launch. There is no production hosting environment yet. Payments are live, so Stripe genuinely processes personal data on our behalf and is listed below as such; the remaining providers are named as categories until their contracts are signed. We will publish the final list, with each provider’s Article 28 agreement in place, before any account holds real data.
Local peer-to-peer syncing engages no sub-processor at all. Files move directly between your own devices over an encrypted connection and never reach our servers, so nothing on this page applies to them.
Currently in use

Processing data today.

ProviderPurpose of processingProcessing location
Stripe Payments Europe, Limited
Ireland (group parent: Stripe, Inc., United States)
Payment processing and subscription billing for paid plans
Receives your name and email address so it can identify a payment. Card details are entered on Stripe's own pages and never reach ShieldSync. Transfers outside the EEA rely on the Commission's standard contractual clauses and, where applicable, the EU-US Data Privacy Framework. Stripe is also an independent controller of payment data for fraud prevention and its own regulatory duties.
Ireland, with transfers to Stripe's group outside the EEA
Mailtrap
Railsware Products Studio LLC
Transactional email (verification, password reset, invitations) — pre-launch capture only
Currently a sandbox mailbox: it captures outbound mail for testing and does not deliver to recipients.
European Union
Expected before launch

Named categories, not yet companies.

Because the contracts are not signed. Each will be listed here by name, with its processing location and agreement in place, before it handles any customer data.

CategoryPurpose of processingIntended location
S3-compatible object storage provider
To be confirmed before launch
Encrypted file storage for Cloud accounts
ShieldSync stores only client-side-encrypted blobs, so the provider receives ciphertext and never a key.
European Union
Transactional email provider
To be confirmed before launch
Delivery of verification, password reset and invitation email
Replaces the sandbox above when real delivery is switched on.
European Union
Analytics or error reporting
None engaged
None engaged - listed so this page records what is absent as well as what is present
ShieldSync runs no analytics, no advertising and no crash reporting. If that changes, the provider appears in the table above before it processes anything.
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Our requirements

What we require of a sub-processor.

Before a provider processes customer data on our behalf we put a written agreement in place meeting Article 28(3) of the GDPR: processing only on our documented instructions, a confidentiality undertaking from their personnel, appropriate security measures, our written authorisation before they engage anyone further, assistance with data-subject requests and breach notification, and deletion or return of the data when the service ends. Where a provider processes data outside the EEA, transfers rely on the European Commission’s standard contractual clauses.

Stay informed

Get notified of changes.

We will email you 30 days before appointing a new sub-processor, so you have time to review it or object under our DPA.