Legal authority constraint — exchange custody (2025)

Constrained

Case description

Ukrainian Bitcoin holders faced a growing set of legal restrictions in 2025 as Ukraine's wartime financial controls required registration of cryptocurrency holdings and restricted capital outflows. The National Bank of Ukraine maintained currency control measures that classified large cryptocurrency transfers as potential capital flight. Holders who sought to move Bitcoin out of custodial exchanges to self-custody wallets in foreign jurisdictions faced regulatory barriers that were inconsistently enforced but created legal uncertainty around fund access for Ukrainian nationals living abroad.

Custody context

Stress condition	Legal or authority constraint
Custody system	Exchange custody
Outcome	Constrained
Documentation	Unknown
Year observed	2025
Country	International

Structural dependencies observed

Legal process required

What this illustrates

Before anyone could access the funds, a legal process had to be completed first. Whether full access was ultimately possible is unclear, but significant delay or outside intervention was involved.

Outcome interpretation

Access remained possible, but only with delay, dependence, or significant difficulty.

Source

Publicly Reported

Evidence type

News article

Evidence link

https://milkroad.com/bankruptcies/

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Framework references

Where Bitcoin Custody Intersects Legal and Fiduciary Authority

Where custody creates gaps in estate planning, fiduciary duty, and professional responsibility.

Professional Scope Boundary Matrix

What each professional or product covers, what they do not, and where gaps form between them.

The Independent Assessment Layer in Bitcoin Custody

How independent diagnostic layers emerge when multiple parties depend on shared infrastructure.