Third Party Due Diligence GDPR
Running third party due diligence gdpr reviews means checking how vendors protect personal data. Tech teams meet this rule by tracking every vendor query and masking private fields. European privacy law holds your company responsible for what your outside vendors do. If a vendor touches European customer data, you must check their security controls first. Paper surveys alone do not show what happens inside your live databases each day. What auditors check for third party due diligence gdpr U
Third-Party Risk Management + GDPR Compliance: the complete guide
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Running third party due diligence gdpr reviews means checking how vendors protect personal data. Tech teams meet this rule by tracking every vendor query and masking private fields.
European privacy law holds your company responsible for what your outside vendors do. If a vendor touches European customer data, you must check their security controls first. Paper surveys alone do not show what happens inside your live databases each day.
What auditors check for third party due diligence gdpr
Under Article 28, you may only use vendors that offer strong data protection controls. Auditors ask for clear proof that you check these vendors before and after hiring. They want to see your signed data rules and your live security logs.
First, you need a clear map of which databases hold personal data. Second, you must show who can log in from an outside vendor team. Third, auditors ask for logs of every command or query those vendors run.
Static role lists only tell an auditor who could log in last month. They do not show what data a vendor read during a support ticket yesterday. Good audit evidence pairs identity checks with a complete log of every action run.
Security teams also check if a vendor holds an outside audit report like SOC 2. When your own tools log every query, you build proof for GDPR and ISO 27001. These same activity logs also help you pass HIPAA, PCI DSS, and SOX reviews.
Why vendor reviews need query logs and data masking
Most companies start vendor checks by setting up single sign-on and role rules. That step is useful, but it stops at the front door of the database. Once a vendor logs in, broad database roles often let them read full tables.
Third-Party Risk Management + GDPR Compliance: architecture patterns and best practices
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Periodic access reviews also miss what happens between quarterly check-ins. A contractor might have the right role on paper but still run risky queries. You need runtime logs that record the exact user, timestamp, and command for every session.
Response masking adds a strong safety net when outside contractors fix live bugs. Masking rules rewrite matched fields like emails, phone numbers, and card numbers in query results. It can also rewrite national IDs so contractors only see safe text during support work.
Adding peer approval for sensitive sessions gives your team even tighter control over vendor work. Before a vendor runs a fix on production, a manager can check the request. Every approval and query then lands in one central log for your next audit.
How to build a repeatable vendor review workflow
Start by listing every outside tool and contractor that touches your production data stores. Remove shared database accounts so every vendor engineer uses a personal login tied to SSO. Set a rule that all vendor sessions expire after a short, fixed window.
Next, turn on command logging and field masking across all databases with European user records. Check these logs each month to spot unused vendor accounts and revoke them fast. When audit season arrives, you can hand over clean logs instead of chasing screenshots.
Add runtime guardrails and masking beside your databases and APIs
Login rules, role grants, and CI checks govern who connects to your stack. Yet any allowed script, engineer, or AI agent still runs commands with the full scope of its role. For workloads on Postgres, MySQL, SQL Server, MongoDB, ClickHouse, Kubernetes, SSH, or internal HTTP services, hoop.dev sits beside the service as an open-source proxy, a sidecar for your database or API.
Before a query runs, hoop.dev guardrails check the statement against your rules. An AI Analyzer you configure can score intent or hold risky calls for human review. Next, hoop.dev data masking rewrites sensitive fields in responses, and each verdict is logged per listener. Explore the MIT-licensed project on GitHub.
Frequently asked questions
What does GDPR Article 28 require for vendor checks?
Article 28 says you must pick vendors with strong technical and security controls. You must sign a data contract and check that they follow your security rules.
Are questionnaires enough for third party due diligence gdpr?
No, questionnaires only show what a vendor promises to do on paper. Auditors also want technical proof, like login records, role checks, and live query logs.
How does data masking help with third-party contractors?
Data masking rewrites matched fields like emails, phone numbers, and card numbers in query results. Contractors can fix app issues while your system limits the personal data returned.