The Context

On 14 August 2025, OFAC re-designated Garantex Europe OU and designated its successor exchange, Grinex, alongside three executives and six associated companies. The hook? Garantex had processed over $100 million in illicit transactions since 2019. That is not an isolated leak. It is a systemic breach. Across 2025, OFAC issued 14 public enforcement actions, and the DOJ now lists sanctions evasion as a top white-collar priority. The numbers are stark: $100 billion in crypto transactions by sanctioned entities globally. This is not a technology failure. It is a governance gap.

The Risk

Under the International Emergency Economic Powers Act (IEEPA), willful violations carry criminal penalties of up to 20 years per count and significant fines. OFAC treats compliance as strict liability: even accidental transactions with sanctioned addresses count as violations. For a director, the audit trail is unforgiving. The Van Loon judgment (November 2024) exposed the structural ambiguity of treating immutable smart contracts as property, but the governance failure lies elsewhere. Under New Zealand’s Companies Act 1993, directors owe a duty of care and diligence. If your board tolerates weak sanctions screening—failing to move from static SDN-list checks to dynamic exposure detection across wallets, mixers, and DeFi protocols—you may be personally exposed. The DOJ has already charged individual executives, including a cryptocurrency founder, for transactions with sanctioned Russian companies. The liability is not hypothetical; it is quantified.

The Control

The solution is not more technology. It is a forensic audit of your sanctions compliance framework. You must move from a checklist approach to continuous, real-time screening. That means integrating blockchain analytics tools that trace transactions through mixers, identify successor exchanges, and flag regime-linked counterparties. Your board needs a quantified risk appetite for sanctioned-entity exposure—and a documented process for freezing and reporting blocked property within 10 business days. Anything less is a governance failure with a price tag.

The Challenge

These are the critical questions you should be raising at the board table:

What is the dollar value of crypto transactions we processed last quarter that touched sanctioned addresses, and what is our reporting lag?
Have we audited our exposure to successor exchanges like Grinex that are deliberately structured to evade controls—and what is our escalation protocol?
Does our sanctions risk assessment explicitly cover mixer transactions and regime-linked exchanges, or are we relying on static SDN-list checks that miss the $100 billion gap?