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Incident

Ticketcounter

Incident posture

Attack window
Mar 2021
Location
Netherlands
Status
Historical
CIA posture
Available to members
Updated
2025-10-26 00:00

Linked entities

Victim
Ticketcounter
Threat actors
0 actors
Sources
1 source

Timeline

Occurred
Mar 2021
Discovered
Pending
Disclosed
Pending
Resolved
Pending

Summary

A Dutch e-ticketing platform experienced a data breach when attackers stole a user database containing 1.9 million unique email addresses from an unsecured staging server. The compromised platform provides online ticketing services to clients including zoos, parks, museums, and event organizers, with the stolen data subsequently used for extortion attempts.

Motives

Detailed motive labels are available to members.

1 motive

TTPs

Detailed technique labels are available to members.

2 techniques

Description

On or around March 2, 2021, Ticketcounter, a Dutch e-ticketing platform serving clients including zoos, parks, museums, and event organizers, experienced a data breach involving unauthorized access to its systems. Attackers exfiltrated a user database containing 1.9 million unique email addresses from an unsecured staging server. The compromised server was part of the company's development or testing infrastructure rather than its production environment. The breach was discovered by external security researchers or journalists, with Lawrence Abrams of BleepingComputer reporting the incident publicly. No information was disclosed regarding how long the staging server remained exposed or the specific timeframe of unauthorized access prior to detection. The attackers employed extortion tactics against Ticketcounter following the data theft, though the nature of these demands and any associated communications were not detailed in available reports.

The stolen database's primary confirmed content consisted of email addresses, with no explicit mention of additional compromised data elements such as passwords, financial information, or personal identifiers. Ticketcounter's role as an intermediary platform for venue ticketing raised concerns about secondary risks to end users, including potential phishing campaigns leveraging stolen email addresses. No information was provided regarding the company's incident response actions, containment measures, or coordination with law enforcement authorities. The breach's operational impact on Ticketcounter's services to its client venues remained unspecified in available reporting. Similarly, no verifiable details emerged concerning the identity or motivation of the threat actors, their methods of initial access beyond the unsecured server, or whether any data was publicly released or sold following the extortion attempt.

Sources

Sources available to members: 1 source.

CSIDB