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Record W4412584567 · doi:10.1111/abac.70001

Exploring the Materiality of Data Breach Disclosures on the Australian Stock Exchange

2025· article· en· W4412584567 on OpenAlex
Jane Andrew, Max Baker, Xiaojiao Wang, Monique Sheehan

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueAbacus · 2025
Typearticle
Languageen
FieldComputer Science
TopicCybercrime and Law Enforcement Studies
Canadian institutionsInstitute on Governance
FundersUniversity of Sydney
KeywordsMateriality (auditing)Stock exchangeBusinessStock (firearms)AccountingHistoryFinanceArtArchaeologyAesthetics

Abstract

fetched live from OpenAlex

This study examines Australian Stock Exchange (ASX) data breach announcements to provide insights into the extent and nature of data breach disclosures, as well as the costs, particularly to stakeholder relationships. Using a dataset of all data breach‐related announcements on the ASX, we identify a lack of data breach disclosure and, where disclosures are made, a notable absence of detail. To examine how the concept of materiality is applied, given its role as a threshold for disclosure to stock markets globally, we provide an in‐depth examination of the case of Landmark White (LMW), the only company to disclose a material impact from its data breaches to the ASX. We identify an announcement paradox, where the data breach at LMW became material over time as stakeholders reacted to the announcements, pointing to a contagion effect. We recommend the creation of likely‐market‐effect models, which allow companies to calculate the likely share price impact of a data breach and use this in their decision to disclose. This approach represents a simple first step in reconceptualizing continuous disclosure regimes for the digital age, aimed at enhancing the transparency and reporting of cyber incidents to stock markets globally.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.682
Threshold uncertainty score0.304

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0020.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.275
GPT teacher head0.341
Teacher spread0.066 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it