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BestMixer seizure

May 2019, Cryptocurrency laundering
Led by Fiscale Inlichtingen- en Opsporingsdienst

Extended pass entry, last reviewed August 21, 2026

What was taken down?

Servers seized in the Netherlands, Luxembourg, and elsewhere; domain taken offline.

See what happened

What happened to the people?

No individual outcomes are recorded against this entry.
Group accounted for: Not established

See people and accountability

Did it stay down?

Not established in the public record. No later activity is recorded against this entry.

See what happened afterward

Dutch FIOD, supported by Europol, seized BestMixer.io in what Europol described as the first law-enforcement action of its kind against a cryptocurrency-mixing service.

Date
May 2019
Target
BestMixer.io, cryptocurrency mixer
Activity
Cryptocurrency laundering
Operational lead
FIOD
Partners
Europol[1]
Jurisdiction
Not established
Outcome
Servers seized in the Netherlands, Luxembourg, and elsewhere; domain taken offline.
Status
Completed
Legal mechanism
Dutch judicial search/seizure authority (FIOD).
Group accounted for
Not established

No individual is named against this entry in the cited record. That is a gap in what has been published rather than a finding that nobody was involved.

Group accounted for: Not established

The cited record does not say how large the group was or whether everyone involved has been identified.

See the organizations and roles behind this action

Not established in the public record. No later activity is recorded against this entry.

Numbered markers throughout this entry link to the source that supports the claim beside them.

Official sources

  1. [1]
    BestMixer.io taken down in first action of its kind against crypto mixing service

    Europol, May 22, 2019, Source grade P2

    Establishes the Dutch FIOD-led seizure of BestMixer, described as the first such action.

    No address recorded for this source. Publisher, title, and date are given so it can be retrieved from the publisher.

Coverage note. Added from deep-research aggregation pass. Not independently re-verified source-by-source to the same standard as the original 38-incident core; source_quality capped at S2/P2 pending a dedicated verification pass.