This record tracks a ransomware attack claimed by the
sinobi group against
Mayfair Hotels & Resorts. 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.
-74days
t1 · Published
t2 · Disclosed
Business Category
Hospitality / Food & Beverage / Tourism
Published
February 19, 2026
Disclosed / Notified
Dec 08, 2025
Attack Summary
MAYFAIR Hotels & Resorts is a premier, award-winning luxury hospitality chain in India, founded in 1982 with its headquarters in Bhubaneswar, Odisha. The group operates over 17 premium properties across India, including resorts in Darjeeling, Gangtok, Goa, and Puri, known for blending modern luxury with local heritage
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 mayfairhotels.com
— indexed by HaveIBeenRansom.
1
found in Infostealer logs
422+
found in Traditional breaches
12+
found in Ransomware leaks
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
OnlinerSpambot_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
IndiaMART_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
Paytm_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
TruecallerIndia_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
LinkedIn.com.txt
Database World ROC · breach
••• emails
B2C Databases.rar
tni.mil.id · 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.