Personal Data Breach Fines for 2026: Updated Amounts
A personal data breach is an incident involving inadequate technical or organisational security measures, unauthorised access or a data leak, misdirected information, a lost device, a…
⏱️ Reading time: 10 min · 📁 Category: KVKK & Digital Compliance
Personal Data Breach Fines for 2026: Updated Amounts
A personal data breach is an incident involving inadequate technical or organisational security measures, unauthorised access or a data leak,
misdirected information, a lost device, a cyberattack or incorrect access permissions, resulting in
unlawful disclosure of or access to personal data, their loss or unavailability.
In 2026, administrative fines under the KVKK were updated under the revaluation rate.
This guide summarises the 2026 fine ranges, the obligations linked to each fine and
the points the Turkish Personal Data Protection Board particularly considers in practice.
A data breach is often discussed alongside a fine. However, fines are assessed primarily by reference to
failures to meet obligations such as privacy information, security measures, VERBİS registration and compliance with Board decisions.
The same data leak may therefore involve several breaches of duty.
as well as obligations concerning compliance with Board decisions or VERBİS registration. The potential fine exposure therefore
may comprise several separate risks. 📊 2) KVKK administrative fines for 2026: updated amounts
The table reproduces the article’s stated 2026 minimum and maximum fines under Law No. 6698. Check the Authority’s current official table before relying on these figures.
| Type of infringement | Legal basis | 2026 Lower Limit (TL) | 2026 maximum (TL) | Typical Risk Scenario |
|---|---|---|---|---|
| Failure to provide required privacy information | KVKK m.18/1-a (m.10) | 85.437 | 1.709.200 | Missing or incorrect privacy notice; employees or customers not informed |
| Violation of obligations for data security | KVKK m.18/1-b (m.12) | 256.357 | 17.092.242 | Weakness after cyberattack, poor authorization, lack of logs, lack of encryption |
| Failure to comply with Board decisions | KVKK m.18/1-c (m.15) | 427.263 | 17.092.242 | Failure to implement the Board’s removal, correction or protective-measure decisions on time |
| Violation of registration and notification obligation to VERBIS | KVKK m.18/1-ç (m.16) | 341.809 | 17.092.242 | VERBIS Lack of registration, incomplete inventory/notification, scope mismatch |
| Failure to notify the Board of a standard contract for an international data transfer | KVKK m.18/1-d (m.9/5) | 90.308 | 1.806.177 | Signing the standard contract but failing to notify the Authority within 5 working days |
In practice, use the Authority’s current published table and announcement; compliance documentation should cite
the official table. 🧭 3) What does the Board consider when setting a fine?
The Board usually evaluates the following criteria together when determining an amount according to the concrete event within the bottom/top limit range of the administrative fine:
- Nature and impact of the breach: scope of the leak, data categories and presence of special-category data
- Number of affected people: scale of the incident, even if only an estimate is available
- Fault and negligence: failure to address known vulnerabilities and repeated infringements
- Technical and organisational measures: permissions matrix, MFA, encryption, logging, access controls, policies and procedures
- Post-breach response: incident response, containment, corrective and preventive action (CAPA), training
- Transparency and collaboration: timely and consistent notification, accurate/complete information
Following a data breach, fines most often concern KVKK Article 12 on data security, according to the article.
However, according to the nature of the event, the following combinations are common:
- Data leak and weak security → m.18/1-b (higher fine range)
- Incomplete privacy information or an incorrect notice after the breach → m.18/1-a
- Failure to comply with a Board decision → m.18/1-c (higher fine range)
- An accompanying VERBİS compliance failure → m.18/1-ç (higher fine range)
- International transfer without the required standard-contract notification → m.18/1-d
The administrative fine is only part of the picture. The following risks can also be raised after a data breach:
- Compensation claims by data subjects for material or non-material harm
- Public disclosure of Board decisions with reputational consequences
- Contractual sanctions such as customer or supplier audits, termination and SLA breaches
- Related regulatory obligations including sector rules, internal audit findings and ISO or compliance processes
legal risk, technical security and digital reputation rather than only notification to the Board
can reduce overall harm and exposure to fines. ✅ 6) Actions to reduce harm and fine exposure
When an event occurs, the following steps must be conducted in a controlled manner within the most critical 24-72 hours:
- Contain the incident: restrict access, remediate the vulnerability and limit the affected systems
- Establish a chain of custody for evidence: logs, incident timeline and affected systems
- Assess the scope: data categories, number of people and risk level
- Plan communications: internal teams, management, legal and IT; inform data subjects where necessary
- Corrective and preventive action: MFA, permission reviews, encryption, backups and training
Current penalty ranges of 2026 clearly show the extent of financial risk that institutions may face when data breaches occur.
Alongside the incident itself, the Board also considers the organisation’s level of preparedness and quality of incident management.
Sources and related documents
These documents provide references for the methods and rules discussed in this article.