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Listed on a ransomware leak site

Lanmark Group

lanmarkgroup.com

Lanmark Group was listed on the Sinobi leak site on Dec 16, 2025. Information as of Oct 19, 2026.

Country: United Arab EmiratesIndustry: Unknown
Updated continuously · figures as of Oct 19, 2026
Claimed by
Sinobi
First listed
Dec 16, 2025
Claims recorded
1

Leak-Site Claim.

SinobiConfirmed claim
Posted on the leak site
Dec 16, 2025
Collected by Brandefense
Dec 16, 2025
Data claimed
Not stated
Leak-site post text, written by the group
Lanmark Group, Inc. is a full-service general contracting firm based in Brooklyn, NY, founded in 2005. The company specializes in handling complex construction projects for both public and private sector clients, demonstrating a commitment to quality, safety, and client satisfaction. With a focus on meticulous planning and execution, Lanmark has established a strong reputation through their extensive portfolio of successful projects. Their expertise is showcased in multi-million dollar constructions, making them a trusted partner for state and municipal agencies.

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Other confirmed victims claimed by the same group
VictimClaimed byCountryIndustryData claimedPosted
Neurotrials Research Inc
neurotrials.com
SinobiUSUnited StatesConsulting180 GB
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SinobiUSUnited StatesConsulting85 GB
Unre3d
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SinobiSESwedenUnknown12 GB
Bay State Land Services
baystatelandservices.com
SinobiUSUnited StatesConstructionNot stated
Celeris Networks
celerisnetworks.com
SinobiUSUnited StatesTechnologyNot stated
Positiwise Infotech Pvt
positiwise.com
SinobiINIndiaTechnology100 GB

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Figures as of Oct 19, 2026. Confirmed leak-site claims collected by Brandefense technologies and validated by Brandefense analysts.

Listed on a leak site means a ransomware group has claimed the company; it is not a confirmed breach. To request a correction or removal, contact Brandefense.