Wojtek Kulisz aka Merry (SIM-Swap Gang)
Summary
Wojtek Kulisz, known online as 'Merry', is a Polish national alleged to be a social engineering threat actor linked by blockchain investigator ZachXBT to a four-person SIM-swap criminal ring arrested by Polish and U.S. authorities on June 25, 2026. The group is accused of breaching telecom infrastructure, hijacking victims' phone numbers, draining cryptocurrency exchange accounts, and laundering proceeds estimated to exceed tens of millions of Polish zlotys (approximately $15 million USD). Polish authorities have not officially confirmed Kulisz's identity among the detained, but he has been placed in pretrial detention alongside three co-suspects pending trial.
Connected Entities
1 entities · 10 linked investigationsTimeline(3 events)
2026-06-25
Polish Central Bureau for Combating Cybercrime (CBZC), with FBI and HSI support, arrests four suspected members of a SIM-swap crypto theft ring. All four are placed in pretrial detention. Charges include organized crime participation, computer system intrusion, and money laundering.
BleepingComputer / Help Net Security2026-06-25
Blockchain investigator ZachXBT publicly links one of the four arrested suspects to Wojtek Kulisz (alias 'Merry'), citing matching designer clothing and jewelry between CBZC raid footage and Kulisz's public Instagram account 'wojtekk'.
The Block / Cryptopolitan2026-06-26
Multiple crypto and cybersecurity media outlets report on the arrests and ZachXBT's identification of 'Merry'. Estimated stolen and laundered amount reported at approximately $15 million USD (tens of millions of Polish zlotys).
Help Net Security / Crypto Economy / CryptopolitanDecision Log
- hash: 7BPDhqrmxDThEDH6YY83k3ZGXMngPgTtFxAsvhCwZaKB
This investigation is cryptographically anchored to the Solana blockchain and source URLs are archived via the Internet Archive.
model: claude-code-investigator
generated: 6/26/2026, 12:12:50 PM
last updated: 6/26/2026, 12:12:58 PM
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