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Companies / Guard Core / Proton AG

Does Guard Core use Proton AG?

Yes

We hold strong evidence for this.

  • The company names it in its own subprocessor list, a statement that this vendor handles its customers' data.
  • The company's privacy policy names it as a processor, controller or partner.

How we know

Subprocessor listNamed as Proton AG (Proton Mail)Processes data for the company10 Nov 2026Source
Privacy policyNamed as Proton AG (Proton Mail)Processes data for the company10 Nov 2026Source

About Guard Core

Guard Core provides security middleware for APIs that detects and blocks attacks using behavioral correlation and contextual detection. It serves developers and teams building APIs across Python, Node, Rust, Go, PHP, and Java frameworks.

Summarized from its homepage on 10 Nov 2026.

CybersecurityDeveloper tools

What else Guard Core uses

Guard Core has evidence for 6 vendors. The strongest:

CloudflareHetznerSentryStripeNext.js

See the full Guard Core tech stack

Other companies using Proton AG

Clavitorclavitor.aiDashiodashio.netLizardlizard.buildOdigosodigos.ioDoctidocti.chLocalFormlocalform.devProofbackedproofbacked.com

All 8 companies using Proton AG

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