This record tracks a ransomware attack claimed by the
ransomhouse group against
HAL Allergy. It collects the publicly disclosed attack details — sector, location and
timeline — as published on the operator's leak site and indexed by Breach House.
Window Zero
EXPOSURE GAP
Window Zero is the time the breach stayed in the open before
anyone said so — the gap between when the attack was first discovered
on the operator's leak site (t1) and when it was publicly disclosed (t2).
The wider this window, the longer victims, staff and customers were exposed with no warning.
-56days
t1 · Published
t2 · Disclosed
Business Category
Communication / Marketing
Published
February 18, 2024
Disclosed / Notified
Dec 24, 2023
Attack Summary
HAL Allergy is one of the European top players in the development, production and distribution of allergen immunotherapies for the treatment and prevention of allergic diseases. With a highly competitive product portfolio, including subcutaneous and sublingual products, and a future-oriented pipeline portfolio, HAL Allergy strives to provide the best possible medical products and scientific output. HAL Allergy is located in the Bio Science Park in Leiden, The Netherlands.
Leak Screenshots
SAMPLE
Proof-of-breach screenshots the operator posted from the stolen data. Previews are
redacted and locked — the originals are available on HaveIBeenRansom.
Dark Web Exposure
Findings for hal-allergy.com
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
457+
found in Traditional breaches
7+
found in Ransomware leaks
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••• emails
contacts_82.csv
Database World ROC · breach
••• emails
contacts_102.csv
Database World ROC · breach
••• emails
+ 17 more leak sources locked
Leak volumes are locked
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Legal Disclaimer:
This ransomware victim record reflects information published on the operator's leak site.
Breach.house does not acquire, download, host, access or redistribute unlawfully obtained data. It indexes only publicly visible information posted by ransomware, breach and infostealer operators and open web sources, without accessing the underlying stolen content. The service supports public awareness, legitimate research and cyber-resilience.