Data Residency · GDPR

    Data Residency & GDPR Engineering

    Data residency and GDPR engineering is the discipline of controlling where personal data lives, who can read it, and how transfers are documented — through engineered controls, not slide-deck commitments. Evolvice implements region policies, key management, and continuous Article 30 records so GDPR holds at the infrastructure layer.

    • ISO 27001
    • NIS2
    • BSI-Grundschutz
    • GDPR

    Overview

    Technical Overview

    GDPR compliance often breaks not in legal interpretation but in the engineering layer: telemetry leaks to non-EU regions, vendor sub-processors are unmapped, and Article 30 records drift from the actual data flow.

    What we put right

    • Telemetry leaking to non-EU regions via SaaS defaults
    • Vendor sub-processors unmapped or undocumented
    • Article 30 records drifting from the actual data flow
    • Transfer Impact Assessments (TIAs) missing or outdated

    Diagnostic

    Common Data-Residency Failure Modes

    What we encounter when reviewing data flows for German clients.

    Symptom

    Telemetry routed through US regions by default

    Root cause
    SaaS vendor defaults never overridden
    Business risk
    Art. 44 GDPR transfer violation

    Symptom

    RoPA out of date with reality

    Root cause
    Manual updates, no link to deployment pipeline
    Business risk
    Art. 30 inaccuracy

    Symptom

    Sub-processor list incomplete

    Root cause
    New SaaS adopted without DPO sign-off
    Business risk
    Contractual breach with customers

    Symptom

    Encryption keys held by SaaS vendor

    Root cause
    CMK / HYOK not enabled
    Business risk
    Schrems II exposure

    Engineering

    Residency is a code path, not a policy paragraph.

    A residency commitment that is not enforced in code, network policy and cloud guardrails is not a control. We turn the legal commitment into deterministic engineering controls and continuous evidence.

    This is what auditors increasingly expect.

    Definition

    Data Residency

    Data residency is the engineering and policy practice of guaranteeing that defined categories of personal or regulated data are stored, processed and transmitted only within specified jurisdictions, with verifiable evidence of compliance.

    Delivery model

    How We Enforce EU Data Residency

    Five steps from data-flow audit to enforced residency controls.

    1. 1

      Data Flow Audit

      End-to-end mapping of personal data flows, including telemetry and backup paths; sub-processor inventory.

    2. 2

      Residency Targets

      Per-data-class residency targets agreed with the DPO and product owners.

    3. 3

      Engineering Controls

      Region allow-lists, network egress filters, CMK / HYOK key management, vendor SCIM scopes.

    4. 4

      Continuous RoPA

      Article 30 records auto-generated from infrastructure metadata and reviewed quarterly.

    5. 5

      Transfer Impact Assessment

      TIA process integrated into vendor onboarding; outputs stored alongside the DPA.

    Compliance

    Compliance Mapping — Data Residency

    How our delivery model maps to the four reference frameworks German enterprises are audited against.

    Compliance Mapping — Data Residency
    ControlISO 27001NIS2BSI-GrundschutzGDPR
    Data Inventory (RoPA)A.5.9Art. 21(2)(d)CON.2Art. 30
    Encryption at RestA.8.24Art. 21(2)(h)CON.1.A.4Art. 32(1)(a)
    Region ControlsA.5.34Art. 21(2)(j)OPS.2.2Art. 44
    Sub-Processor MgmtA.5.19Art. 21(2)(d)OPS.2.3Art. 28
    Data Subject RightsA.5.34CON.2.A.7Art. 12–22

    Questions & Answers

    Questions enterprise buyers ask

    Definitions, delivery detail and commercial answers in one place — written to be quotable by search and AI answer engines, and readable by your team.

    How it works

    No. Storage in the EU is necessary but not sufficient. Schrems II requires that access by non-EU entities is also prevented through technical measures such as customer-managed keys and limited admin paths.

    Working with Evolvice

    Talk to the Evolvice team.

    We start with a 30-minute diagnostic of your current delivery — at no cost and with no sales pitch. You leave with a written summary of findings either way.

    Contact Evolvice Team