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When Karma Comes Back

ID: 376bc4bc-e7bd-537a-addc-3643a022f15f

STIX ID: report--376bc4bc-e7bd-537a-addc-3643a022f15f

Feed Name: Group-IB Blog

Threat Score
78/100

Date Published: 2021-04-08

Date Updated: 2026-04-27

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Group-IB Threat Intelligence reports that the underground card shop “Swarmshop” was breached twice (January 2020 and March 2021), and the March 2021 leak exposed a database containing 12K+ user accounts and massive volumes of stolen data — including 623,036 payment card records, 498 online banking credentials, and roughly 69,592 US/Canadian social identification numbers — which were posted on multiple underground forums and likely enable large-scale fraud and identity misuse.

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