Skip to main content
Back to overview
High

Ajax reports new data leak and vulnerabilities after ethical hacker's findings

Football club Ajax has reported a new data leak to the Dutch Data Protection Authority (Autoriteit Persoonsgegevens) after an ethical hacker, Abdoul Rasnab, discovered new vulnerabilities in their digital systems this…

Key points

  • Ethical hacker Abdoul Rasnab discovered new vulnerabilities in Ajax's digital systems in 2026.
  • Vulnerabilities allowed access to season ticket holder data, internal emails, and stadium ban information.
  • Ajax reported the data leak to the Autoriteit Persoonsgegevens on or around March 27, 2026.

Connected intelligence

Signal brief

Follow the organization, likely method and potential impact to explore connected Shadow Tier intelligence.

02

Likely method

Error

Threat source not confirmed

03

Potential impact

Data Exposure

Impact remains under assessment

Published
Mar 27, 2026
Updated
Jul 2, 2026
Confidence
High
Evidence
3 sources

Structured assessment

Signal analysis

It helps compare this signal with other published signals without treating the labels as final determinations.

Threat source

Threat source not confirmed

Watch process controls, misconfiguration and accidental disclosure paths.

Business impact

Potential business exposure
Impact area
Unknown

Mentioned entities

AjaxAjaxFootballAutoriteit PersoonsgegevensAbdoul RasnabTheseEthicalVulnerabilities

Quick context

Questions about this signal

What happened in this signal?

Football club Ajax has reported a new data leak to the Dutch Data Protection Authority (Autoriteit Persoonsgegevens) after an ethical hacker, Abdoul Rasnab, discovered new vulnerabilities in their digital systems this year (2026). These vulnerabilities allowed access to season ticket holder data, internal emails, and information about stadium bans. This follows a previous incident in 2017 that Ajax reportedly kept secret. The club has filed a complaint against the hacker after he went public with the findings.

When was this signal reported?

Shadow Tier lists Mar 27, 2026 as the signal date.

Which organization is connected to this signal?

Ajax is the organization connected to this public signal.

Explore Ajax
Which impact area is relevant?

This signal is connected to data exposure and breach intelligence based on its reported consequences.

Explore data exposure and breach intelligence