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Listed on a ransomware leak site

ATMCo

atmco.net

ATMCo was listed on the Trigona leak site on Feb 21, 2024. Information as of Oct 19, 2026.

Country: Saudi ArabiaIndustry: Unknown
Updated continuously · figures as of Oct 19, 2026
Claimed by
Trigona
First listed
Feb 21, 2024
Claims recorded
1

Leak-Site Claim.

TrigonaConfirmed claim
Posted on the leak site
Feb 21, 2024
Collected by Brandefense
Jul 12, 2025
Data claimed
Not stated

Posted again 1 time by the same group

Leak-site post text, written by the group
ATMCo is a reputable tax management company based in Broken Arrow, Oklahoma. With a commitment to simplifying tax-related processes for businesses and individuals, ATMCo offers comprehensive services in tax preparation, bookkeeping, and accounting. Company is headquartered at 2220 W Houston St Ste A, Broken Arrow, Oklahoma. Situated in a convenient location, the company is easily accessible to clients seeking professional tax management services.

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VictimClaimed byCountryIndustryData claimedPosted
Claro
claro.com.do
TrigonaARArgentinaTechnology, TelecommunicationsNot stated
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TrigonaUSUnited StatesUnknownNot stated
Topa Partners
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TrigonaNZNew ZealandUnknownNot stated
Bwizer
bwizer.com
TrigonaPTPortugalHealthcareNot stated
Indoarsip
indoarsip.co.id
TrigonaIDIndonesiaTechnologyNot stated
Hotel Avenida, Hostal Espoz y Mina, Hostal Arriazu, Pension Alemana
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TrigonaESSpainUnknownNot stated

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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.