StockX, HTC Mania and others fall victim of data leaks.

A total of 18 breach events were found and analysed resulting in 6,225,725 exposed accounts containing a total of 14 different data types of personal datum . The breaches found publicly and freely available included StockX, HTC Mania, WoWpedia, Daily Quiz and Quidd. Sign in to view the full library of breach events which includes, where available, reference articles relating to each breach.

Data Breach Analysis

While the overall number of exposed accounts may seem relatively modest compared to major single-event breaches, the breadth of the impacted services and the variety of personal data types involved is significant. It offers a window into the distributed and pervasive nature of data leakage across industries and online communities.

StockX, a major platform in the streetwear and sneaker resale space, was perhaps the most commercially prominent among the breaches. It serves a global user base and processes high-value transactions linked to both financial information and personal identity. For a resale platform, this kind of detailed consumer data is not just about user identity but also about profiling purchasing behaviours, which could be leveraged by malicious actors for phishing, fraud, or black market targeting.

HTC Mania, a Spanish-speaking online forum for mobile phone enthusiasts, is another example of a community-driven site that amassed considerable user data. While users may operate under pseudonyms, the reuse of email addresses and passwords across services means these breaches can ripple far beyond their original platforms.

WoWpedia, a fan-driven wiki for the popular online game World of Warcraft, reflects a different kind of exposure. Platforms like these are typically viewed as informational resources, but community features often require registration, which brings in personal data. Even minimal information from a site like this can become dangerous if paired with data from other leaks.

Daily Quiz is a trivia game platform that likely collected data related to account creation and engagement. In some cases, payment information may also be involved if users purchased premium features. The casual nature of such platforms often leads users to underestimate the risk associated with registering or reusing credentials.

Quidd, a digital collectibles app, presents another case of risk in the intersection of digital identity and commerce. Users could buy, sell, and trade virtual stickers and cards, with many transactions tied to real-world currency. The blend of financial and social data makes this breach especially sensitive.

With 14 different types of personal data exposed across these breaches, the scope of compromised information is wide. This variety demonstrates that even when breach volumes are not in the tens of millions, the qualitative value of the data can still be considerable. When many types of personal information are present in one record, the resulting profile is more complete and more exploitable. This data can be used to build targeted phishing campaigns, perform credential stuffing, or simply resell as part of identity packages to other cybercriminals.

Importantly, the analysis of these breaches reveals something else: the continual erosion of personal privacy through a broad swath of digital interactions. From niche fan wikis to multi-million dollar commerce platforms, data is collected and often stored insecurely. Users rarely know which platforms will become the weak link in their digital identity chain.

Another element worth noting is the time dimension of these breaches. Some affected platforms may no longer be active, or the breaches themselves might be years old, but the data remains in circulation. Even seemingly outdated information has long-term consequences. An old email-password pair, if reused, can still unlock modern accounts. A name and postal address can assist in identity verification fraud or synthetic identity construction. The lasting relevance of exposed data is often underestimated.

Furthermore, platforms like StockX and Quidd represent a new breed of digital commerce and collection that merges online identity with high-value transactions. These sectors are increasingly attractive targets for cybercriminals due to their younger user bases, fast growth, and reliance on mobile-first architecture. As such, the security measures protecting these systems may not always scale with the value of the data being processed.

Overall, this set of breach events encapsulates many of the ongoing challenges in digital privacy and security. The quantity of accounts breached is not always the most meaningful measure. Rather, the depth of exposure, the diversity of services, and the lasting accessibility of the data form the more pressing story.