Ryuhei Matsuda
Also reported as: ryuhei.ethryuheimatryuheimat3akame.eth0xhiros
A professional identity listed by a third-party registry of suspected DPRK IT-worker personas, cited below. The registry publishes no byline or methodology, so the attribution is the registry's. Values this site read from a live account are cited to the page and date.
Photograph published by the registry under this persona, captioned there as “Picture of Ryuhei”. It shows whoever appeared under this identity, which is not necessarily the person whose details the identity was assembled from — these operations routinely build a persona around a real, uninvolved person.
Profiles and evidence
Avatar published by the registry under this persona, captioned there as “Ryuhei Matsuda profile picture.”. It is the picture the identity presented, not a likeness of anyone.
Identity document published by the registry under this persona, captioned there as “Ryuhei's fake passport”. The registry presents it as a document used for this identity. Its name, number and photograph are the document's own and may belong to a real person whose identity was stolen to build the persona.
LinkedIn accounts
ryuhei-matsuda
removed
linkedin profile IT Worker Fraud MATCHED IN SOURCE removed
Listed as ryuhei-matsuda
Sources
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Entry in the lazarus.group DPRK IT-worker registry, which asserts that these accounts belong to one operator. The registry publishes no methodology, so this is recorded as its claim and not as a finding of this site. Its evidence links and its cross-references to other operators in the same registry are deliberately not reproduced as indicators.
lazarus.group/team/ryuhei-matsuda — Lazarus Group DPRK IT-Worker Registry (lazarus.group) -
…Finance, Raze Network, Sandclock, Shardeum, Paid Network, Hyperionx - ryuhei.eth - ryuheimat - ryuheimat3 - ryuheimat3@gmail.com - linkedin.com/in/ryuhei-matsuda - github.com/ryuheimat • [Archive](https://archive.ph/V5GsZ) - github.com/mono300genuine • [Archive](https://archive.ph/wip/Am9Cr) -…
DPRK IT Workers — tayvano (lazarus-bluenoroff-research)
Identifiers reported alongside
17 indicators filed under the same heading, each with its sources.
| Indicator | Type | Account status |
|---|---|---|
akame.eth |
alias | |
Ryuhei Matsuda |
alias | |
ryuhei.eth |
alias | |
https://hub.docker.com/u/ryuheimat |
dockerhub account | live |
ryuheimat3@gmail.com |
email address | |
https://github.com/jcking89 |
github profile | live |
https://github.com/mono300genuine |
github profile | live |
https://github.com/ryuheimat |
github profile | live |
https://gitlab.com/ryuheimat |
gitlab account | |
https://gitlab.com/ryuheimat3 |
gitlab account | |
https://keybase.io/ryuheimat |
keybase account | live |
https://medium.com/@ivan.shodanov |
medium account | |
0x36c67d5ce9e2e4a919f568fc33657fcad0030880 |
wallet address | |
0x6fb678b2dd9d2ff50ee9ecf774251dcceb7a2da8 |
wallet address | |
0x86fce1a6cbaaf0d0d7cb727e9b9eac5ed4150a5b |
wallet address | |
0xa71b641a498e33bb13548a01eca5e20e083e637b |
wallet address | |
0xd97729eef14c189144adb0591e4ddb1a66ce22af |
wallet address |
akame.eth
alias IT Worker Fraud THIRD-PARTY REGISTRY
Source
-
Entry in the lazarus.group DPRK IT-worker registry, which asserts that these accounts belong to one operator. The registry publishes no methodology, so this is recorded as its claim and not as a finding of this site. Its evidence links and its cross-references to other operators in the same registry are deliberately not reproduced as indicators.
lazarus.group/team/ryuhei-matsuda — Lazarus Group DPRK IT-Worker Registry (lazarus.group)
Ryuhei Matsuda
alias IT Worker Fraud CURATED
Sources
-
Entry in the lazarus.group DPRK IT-worker registry, which asserts that these accounts belong to one operator. The registry publishes no methodology, so this is recorded as its claim and not as a finding of this site. Its evidence links and its cross-references to other operators in the same registry are deliberately not reproduced as indicators.
lazarus.group/team/ryuhei-matsuda — Lazarus Group DPRK IT-Worker Registry (lazarus.group) -
Found on 13 September 2026 by probing every account handle this site already holds for this operator against GitLab, and read from the profile cited. An active GitLab account exists under ryuheimat, a login the index already carries for this persona on another platform. The profile gives a member-since date of 11 September 2018. It displays the name Ryuhei Matsuda, the same name the reporting already gives. The handle is what links this account to the rest; nothing here establishes that one person holds both, and a display name on a profile is a name the account presents, not an identification. The profile's bio, location and links render only in a browser and were not read, so nothing is claimed about them either way.
gitlab.com/ryuheimat — Chollima Hunter -
Found on 17 September 2026 by asking Keybase whether an account exists under ryuheimat, one of the logins the registry already holds for this operator, and read from the profile cited. The account states a registration date of 17 May 2022 and no display name but the handle itself. The handle is what links this account to the rest; nothing here establishes that one person holds both, and a display name on a profile is a name the account presents, not an identification.
keybase.io/ryuheimat — Chollima Hunter -
Found on 17 September 2026 by asking Docker Hub whether an account exists under ryuheimat, one of the logins the registry already holds for this operator, and read from the profile cited. The account states a registration date of 11 July 2018. The handle is what links this account to the rest; nothing here establishes that one person holds both, and a display name on a profile is a name the account presents, not an identification.
hub.docker.com/u/ryuheimat — Chollima Hunter -
Found on 18 September 2026 by taking the local part of an address this index already holds for this operator -- ryuheimat3 -- and asking GitLab whether an account exists under it. The address is on a consumer mail host, where the local part is a login the holder chose rather than one an employer assigned; handles taken from company addresses were excluded from this pass for that reason. The account states a display name of Ryuhei Matsuda. The display name is kept here rather than carried as an alias, because it restates the handle, describes the work, or is too bare to be a name. The login is what links this account to the rest; nothing here establishes that one person holds both, and a display name on a profile is a name the account presents, not an identification.
gitlab.com/ryuheimat3 — Chollima Hunter -
Found on 24 September 2026 by searching GitHub's commit index for every personal address the lazarus.group registry gives for a persona, and keeping the accounts whose own repositories are committed with one. GitHub mints a noreply address from an account's immutable numeric id, in the form id+handle@users.noreply.github.com, so former handles below are a matter of record. github.com/jcking89 is account id 40835770, created on 4 July 2018, with 89 public repositories. Forty-nine commits in nineteen of them are signed ryuheimat3@gmail.com, an address lazarus.group and tayvano give for Ryuhei Matsuda, which GitHub attributes to github.com/ryuheimat, the account both list for the persona. They carry the author names ryuheimat, Ryuhei Matsuda, ryuhei and r2moon and are made on the day each repository was created, from cryptoExchange on 6 January 2021 and LendBorrow on 3 June 2021 to simple-univ3-integration on 6 July 2023; in all but one of the repositories read they are the only commits. An account whose repositories are opened with the persona's identity, over two and a half years, is the persona's second account or one it has push access to.
github.com/jcking89 — Chollima Hunter
ryuhei.eth
alias IT Worker Fraud THIRD-PARTY REGISTRY
Source
-
Entry in the lazarus.group DPRK IT-worker registry, which asserts that these accounts belong to one operator. The registry publishes no methodology, so this is recorded as its claim and not as a finding of this site. Its evidence links and its cross-references to other operators in the same registry are deliberately not reproduced as indicators.
lazarus.group/team/ryuhei-matsuda — Lazarus Group DPRK IT-Worker Registry (lazarus.group)
https://hub.docker.com/u/ryuheimat
dockerhub account IT Worker Fraud CURATED live
live
Source
-
Found on 17 September 2026 by asking Docker Hub whether an account exists under ryuheimat, one of the logins the registry already holds for this operator, and read from the profile cited. The account states a registration date of 11 July 2018. The handle is what links this account to the rest; nothing here establishes that one person holds both, and a display name on a profile is a name the account presents, not an identification.
hub.docker.com/u/ryuheimat — Chollima Hunter
ryuheimat3@gmail.com
email address IT Worker Fraud CURATED
Sources
-
Entry in the lazarus.group DPRK IT-worker registry, which asserts that these accounts belong to one operator. The registry publishes no methodology, so this is recorded as its claim and not as a finding of this site. Its evidence links and its cross-references to other operators in the same registry are deliberately not reproduced as indicators.
lazarus.group/team/ryuhei-matsuda — Lazarus Group DPRK IT-Worker Registry (lazarus.group) -
Found on 24 September 2026 by searching GitHub's commit index for every personal address the lazarus.group registry gives for a persona, and keeping the accounts whose own repositories are committed with one. GitHub mints a noreply address from an account's immutable numeric id, in the form id+handle@users.noreply.github.com, so former handles below are a matter of record. github.com/jcking89 is account id 40835770, created on 4 July 2018, with 89 public repositories. Forty-nine commits in nineteen of them are signed ryuheimat3@gmail.com, an address lazarus.group and tayvano give for Ryuhei Matsuda, which GitHub attributes to github.com/ryuheimat, the account both list for the persona. They carry the author names ryuheimat, Ryuhei Matsuda, ryuhei and r2moon and are made on the day each repository was created, from cryptoExchange on 6 January 2021 and LendBorrow on 3 June 2021 to simple-univ3-integration on 6 July 2023; in all but one of the repositories read they are the only commits. An account whose repositories are opened with the persona's identity, over two and a half years, is the persona's second account or one it has push access to.
github.com/jcking89 — Chollima Hunter -
…Loom Network, Naos Finance, Raze Network, Sandclock, Shardeum, Paid Network, Hyperionx - ryuhei.eth - ryuheimat - ryuheimat3 - ryuheimat3@gmail.com - linkedin.com/in/ryuhei-matsuda - github.com/ryuheimat • [Archive](https://archive.ph/V5GsZ) - github.com/mono300genuine •…
DPRK IT Workers — tayvano (lazarus-bluenoroff-research)
https://github.com/jcking89
github profile IT Worker Fraud CURATED live
live
Source
-
Found on 24 September 2026 by searching GitHub's commit index for every personal address the lazarus.group registry gives for a persona, and keeping the accounts whose own repositories are committed with one. GitHub mints a noreply address from an account's immutable numeric id, in the form id+handle@users.noreply.github.com, so former handles below are a matter of record. github.com/jcking89 is account id 40835770, created on 4 July 2018, with 89 public repositories. Forty-nine commits in nineteen of them are signed ryuheimat3@gmail.com, an address lazarus.group and tayvano give for Ryuhei Matsuda, which GitHub attributes to github.com/ryuheimat, the account both list for the persona. They carry the author names ryuheimat, Ryuhei Matsuda, ryuhei and r2moon and are made on the day each repository was created, from cryptoExchange on 6 January 2021 and LendBorrow on 3 June 2021 to simple-univ3-integration on 6 July 2023; in all but one of the repositories read they are the only commits. An account whose repositories are opened with the persona's identity, over two and a half years, is the persona's second account or one it has push access to.
github.com/jcking89 — Chollima Hunter
https://github.com/mono300genuine
github profile IT Worker Fraud MATCHED IN SOURCE live
Listed as mono300genuine
live
Source
-
…ryuheimat3 - ryuheimat3@gmail.com - linkedin.com/in/ryuhei-matsuda - github.com/ryuheimat • [Archive](https://archive.ph/V5GsZ) - github.com/mono300genuine • [Archive](https://archive.ph/wip/Am9Cr) - 0x36c67d5ce9e2e4a919f568fc33657fcad0030880 (T) - 0x6fb678b2dd9d2ff50ee9ecf774251dcceb7a2da8…
DPRK IT Workers — tayvano (lazarus-bluenoroff-research)
https://github.com/ryuheimat
github profile IT Worker Fraud MATCHED IN SOURCE live
Listed as ryuheimat
live
Sources
-
Entry in the lazarus.group DPRK IT-worker registry, which asserts that these accounts belong to one operator. The registry publishes no methodology, so this is recorded as its claim and not as a finding of this site. Its evidence links and its cross-references to other operators in the same registry are deliberately not reproduced as indicators.
lazarus.group/team/ryuhei-matsuda — Lazarus Group DPRK IT-Worker Registry (lazarus.group) -
…Shardeum, Paid Network, Hyperionx - ryuhei.eth - ryuheimat - ryuheimat3 - ryuheimat3@gmail.com - linkedin.com/in/ryuhei-matsuda - github.com/ryuheimat • [Archive](https://archive.ph/V5GsZ) - github.com/mono300genuine • [Archive](https://archive.ph/wip/Am9Cr) -…
DPRK IT Workers — tayvano (lazarus-bluenoroff-research)
https://gitlab.com/ryuheimat
gitlab account IT Worker Fraud CURATED
Source
-
Found on 13 September 2026 by probing every account handle this site already holds for this operator against GitLab, and read from the profile cited. An active GitLab account exists under ryuheimat, a login the index already carries for this persona on another platform. The profile gives a member-since date of 11 September 2018. It displays the name Ryuhei Matsuda, the same name the reporting already gives. The handle is what links this account to the rest; nothing here establishes that one person holds both, and a display name on a profile is a name the account presents, not an identification. The profile's bio, location and links render only in a browser and were not read, so nothing is claimed about them either way.
gitlab.com/ryuheimat — Chollima Hunter
https://gitlab.com/ryuheimat3
gitlab account IT Worker Fraud CURATED
Source
-
Found on 18 September 2026 by taking the local part of an address this index already holds for this operator -- ryuheimat3 -- and asking GitLab whether an account exists under it. The address is on a consumer mail host, where the local part is a login the holder chose rather than one an employer assigned; handles taken from company addresses were excluded from this pass for that reason. The account states a display name of Ryuhei Matsuda. The display name is kept here rather than carried as an alias, because it restates the handle, describes the work, or is too bare to be a name. The login is what links this account to the rest; nothing here establishes that one person holds both, and a display name on a profile is a name the account presents, not an identification.
gitlab.com/ryuheimat3 — Chollima Hunter
https://keybase.io/ryuheimat
keybase account IT Worker Fraud CURATED live
live
Source
-
Found on 17 September 2026 by asking Keybase whether an account exists under ryuheimat, one of the logins the registry already holds for this operator, and read from the profile cited. The account states a registration date of 17 May 2022 and no display name but the handle itself. The handle is what links this account to the rest; nothing here establishes that one person holds both, and a display name on a profile is a name the account presents, not an identification.
keybase.io/ryuheimat — Chollima Hunter
https://medium.com/@ivan.shodanov
medium account IT Worker Fraud MATCHED IN SOURCE
Listed as @ivan.shodanov
Source
-
…- https://icoholder.com/en/kira-1003837 - https://kylinnetwork.medium.com/kylin-network-monthly-report-2-d9b6be5b8cdf - https://medium.com/@ivan.shodanov/the-15-most-promising-small-cap-defi-projects-to-invest-in-2021-6e9d5aa5774c - https://polkastarter.com/projects/naos-finance -…
DPRK IT Workers — tayvano (lazarus-bluenoroff-research)
0x36c67d5ce9e2e4a919f568fc33657fcad0030880
wallet address IT Worker Fraud THIRD-PARTY REGISTRY
Source
-
Entry in the lazarus.group DPRK IT-worker registry, which asserts that these accounts belong to one operator. The registry publishes no methodology, so this is recorded as its claim and not as a finding of this site. Its evidence links and its cross-references to other operators in the same registry are deliberately not reproduced as indicators.
lazarus.group/team/ryuhei-matsuda — Lazarus Group DPRK IT-Worker Registry (lazarus.group)
0x6fb678b2dd9d2ff50ee9ecf774251dcceb7a2da8
wallet address IT Worker Fraud THIRD-PARTY REGISTRY
Source
-
Entry in the lazarus.group DPRK IT-worker registry, which asserts that these accounts belong to one operator. The registry publishes no methodology, so this is recorded as its claim and not as a finding of this site. Its evidence links and its cross-references to other operators in the same registry are deliberately not reproduced as indicators.
lazarus.group/team/ryuhei-matsuda — Lazarus Group DPRK IT-Worker Registry (lazarus.group)
0x86fce1a6cbaaf0d0d7cb727e9b9eac5ed4150a5b
wallet address IT Worker Fraud THIRD-PARTY REGISTRY
Source
-
Entry in the lazarus.group DPRK IT-worker registry, which asserts that these accounts belong to one operator. The registry publishes no methodology, so this is recorded as its claim and not as a finding of this site. Its evidence links and its cross-references to other operators in the same registry are deliberately not reproduced as indicators.
lazarus.group/team/ryuhei-matsuda — Lazarus Group DPRK IT-Worker Registry (lazarus.group)
0xa71b641a498e33bb13548a01eca5e20e083e637b
wallet address IT Worker Fraud THIRD-PARTY REGISTRY
Source
-
Entry in the lazarus.group DPRK IT-worker registry, which asserts that these accounts belong to one operator. The registry publishes no methodology, so this is recorded as its claim and not as a finding of this site. Its evidence links and its cross-references to other operators in the same registry are deliberately not reproduced as indicators.
lazarus.group/team/ryuhei-matsuda — Lazarus Group DPRK IT-Worker Registry (lazarus.group)
0xd97729eef14c189144adb0591e4ddb1a66ce22af
wallet address IT Worker Fraud THIRD-PARTY REGISTRY
Source
-
Entry in the lazarus.group DPRK IT-worker registry, which asserts that these accounts belong to one operator. The registry publishes no methodology, so this is recorded as its claim and not as a finding of this site. Its evidence links and its cross-references to other operators in the same registry are deliberately not reproduced as indicators.
lazarus.group/team/ryuhei-matsuda — Lazarus Group DPRK IT-Worker Registry (lazarus.group)
Sources
- DPRK IT Workers — tayvano (lazarus-bluenoroff-research)
- lazarus.group/team/ryuhei-matsuda — Lazarus Group DPRK IT-Worker Registry (lazarus.group)
- github.com/jcking89 — Chollima Hunter
- gitlab.com/ryuheimat — Chollima Hunter
- keybase.io/ryuheimat — Chollima Hunter
- hub.docker.com/u/ryuheimat — Chollima Hunter
- gitlab.com/ryuheimat3 — Chollima Hunter