KVKK and Law 5651 compliance: put the technical measures in place and keep the evidence ready.
The legal side of compliance belongs to lawyers; the technical side belongs to IT teams. This guide summarises the most frequently asked technical measures and the evidence requested in audits.
The technical side of KVKK
Türkiye's Personal Data Protection Law No. 6698 (KVKK) requires data controllers to take appropriate technical and organisational measures to secure personal data. The Personal Data Security Guide published by the Personal Data Protection Authority gives examples of these measures.
In practice this means preventing unauthorised access, encrypting data, logging operations and detecting breaches.
Law No. 5651 and access logs
Türkiye's Law No. 5651 and related regulations may oblige organisations that provide internet access to keep access logs and protect their integrity. Logs must be stored with a timestamp and be available on request.
We recommend confirming with your legal team which obligations apply to you and the retention periods.
Technical measures and the evidence requested in audits
| Measure | Example implementation | Evidence requested in audits |
|---|---|---|
| Access authorisation | Least privilege, role-based access | Access lists and records of regular reviews |
| Encryption | Encryption at rest and in transit | Configuration records and key management |
| Logging | System, database and internet access logs | Log retention and integrity verification reports |
| Masking | Masking personal data in test environments | Masking rules and application records |
| Backup | Regular backups and restore tests | Backup success and restore test records |
| Breach detection | SIEM monitoring and incident response | Incident records and root cause reports |
Scope boundary
- Legal opinions, privacy notices and contract drafting are out of scope
- Official certification audits are conducted by independent certification bodies
- Data controller obligations rest with you; we act as a data processor
- For architectures requiring cross-border data transfers, we present the technical options and leave the legal basis to your legal department
Related solutions and products
KVKK, Law No. 5651 and ISO 27001 Compliance Support
Implementation and operation of the technical and administrative measures required by legislation, and production of audit-ready evidence.
Explore →KVKK Compliance Consulting
Implementation and operation of the technical and administrative measures required by Law No. 6698.
Explore →Law No. 5651 Compliance
Solutions for the log recording and retention obligations under Law No. 5651.
Explore →SecureChapter eCISO
Governance, risk, compliance and cyber operations in one command layer: regulatory tracking, continuous evidence and audit readiness.
Explore →Frequently asked questions
Which technical measures are mandatory for KVKK compliance?
The law requires measures that ensure an appropriate level of security, and the Authority's Personal Data Security Guide gives examples. Which measures are appropriate for you depends on your data inventory and risk analysis.
How long must Law 5651 access logs be kept?
The retention period depends on the type of obligation the organisation has under the legislation. Once you have confirmed your scope with your legal team, we build and run the logging infrastructure accordingly.
Does TurnCloudON provide legal advice?
No. We build, run and document the technical side of compliance. Legal opinions and privacy notices are the job of your legal team or advisers.
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