EU Sovereignty Score
EU sovereignCybersecurityHeadquarters: DE

Cure53: sovereignty score and 5 European alternatives

Cure53 is a Berlin-based security firm, founded in 2007, that carries out manual penetration tests and code audits. Its services include security analysis and architectural advice at design stage, black-box and white-box penetration tests, and audits of infrastructure, platforms and cryptography. Typical clients build web applications, mobile apps and online services, including VPNs, crypto wallets, password managers and open-source projects. According to the firm, its experts work per project under NDA and GDPR-compliant agreements. Reports are deliberately short and are published only when the project maintainers or the sponsor request it.

Cure53 is headquartered in Berlin, and the sources consulted name no foreign parent. As a service provider it sells expertise rather than software, so data location concerns mainly the code and documentation clients share during an engagement; the sources do not state where these are stored.

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Sovereignty score
71 / 1000 = high exposure
100 = sovereign
  • Jurisdiction SOV-2100
    Headquartered in the EU: European law applies
  • Data residency SOV-3100
    EU-only hosting
  • Cryptographic key sovereignty SOV-360
    Key management with a European vendor
  • Freedom from lock-in SOV-640
    Closed source: switching requires data migration
  • Source & runtime sovereignty SOV-4 · SOV-655
    Closed source, runtime with the vendor

SOV codes: the matching objective in the European Commission's Cloud Sovereignty Framework. Official source

How the score is calculated

Facts and evidence

Last checked October 2, 2026
Headquarters
DE (EU)Verified by hand
Sovereignty model
Vendor-hosted (EU)Verified by hand
Data hosting
EUVerified by hand
Open-source
NoVerified by hand
GDPR-compliant
YesVendor-stated
Hosting signal
GODADDY-SXB - Host Europe GmbH, DE (DE)Technically measured
Category
Cybersecurity
Type
Service
Website
cure53.de ↗

The hosting signal shows the network that serves the vendor's website, often a CDN, and not necessarily where the service or your data is hosted. How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Cure53

The European alternatives to Cure53 come from our knowledge base of over 6,800 vendors. We only list vendors headquartered in the EU or the EEA; fully European-owned vendors rank before vendors with a foreign owner. For each alternative you see the country, the open-source status and a short description.

Score per alternative: 0 = high exposure, 100 = sovereign

93 European Cybersecurity vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

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Why digital sovereignty matters with Cure53

Cure53 is headquartered in DE and therefore falls under European law: the GDPR, NIS2 and the Data Act. No foreign legislation can compel access to your data.

Data is hosted exclusively in the EU, so Cure53 scores best on data residency.

Cure53 is closed source and hosted by the vendor. The encryption keys and the runtime sit with the vendor and switching requires data migration. Ask about bring-your-own-key, export options and open standards.

What this means for your organisation depends on your whole stack and context. The free assessment weighs Cure53 together with your other vendors and gives a total score, a heatmap and the main risk drivers.

Frequently asked questions

What is the best European alternative to Cure53?

It depends on your use case. Strong EU alternatives to Cure53 include Airbus CyberSecurity, Eviden (Atos) and DCSO. On this page you can compare 5 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Cure53?

Our list of EU alternatives to Cure53 is mostly commercial options. Browse the category on the map for open-source choices.

Is Cure53 GDPR-compliant and where is the data hosted?

Cure53 is headquartered in DE (EU) and hosts data in EU. That makes Cure53 an EU-sovereign choice in its own right; the EU alternatives on this page are comparable European tools.

Details and sources

Verified by handHeadquarters, owner, hosting locations and licence have been checked by us against public sources. Free of charge and for every vendor, not a paid label. Nothing in this knowledge base is taken over automatically. Last checked on October 2, 2026.

Sources

Public sources used in the latest check of this record.

Compliance evidence

The links below point to the vendor's own public documents. We only record what we found: a missing link means "not found publicly", not "not compliant".

No public compliance evidence has been recorded for this vendor yet. Do you know its DPA or subprocessor list? Something wrong? Suggest a correction

Cyber Resilience Act

Public signals that relate to the EU Cyber Resilience Act. They do not count towards the score. A missing line means "not found publicly".

We found none of these signals on the vendor's own site when we checked.

For products in scope of the CRA, CE marking is required from 11 December 2027; this cannot be checked yet.

Checked on October 9, 2026. What is the Cyber Resilience Act?

Digital sovereignty in Cybersecurity

Cybersecurity: Threat detection, endpoint protection, SIEM, vulnerability management. In this category the choice of vendor determines who has legal access to your data, where that data lives and how easily you can switch later.

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5 European alternatives to Cure53 — GDPR-compliant & EU-hosted · EU Sovereignty Score