CoinDesk
OFAC added 134 crypto addresses to its ISIS-Khorasan sanctions entry on Wednesday, including 131 Tron addresses and 3 Monero addresses, after Chainalysis traced more than $1.4 million in inflows through the Tron wallets since 2023. Tether immediately froze balances on all 131 Tron addresses, the first time a stablecoin issuer has publicly intervened at this scale against a sanctioned terrorist organization on a single chain.
ISIS-K, the Islamic State affiliate active across Afghanistan, Pakistan and parts of Central Asia, used its media arm al-Azaim Media Foundation to solicit crypto donations through websites and messaging platforms, Chainalysis said. The investigation also identified historical donation addresses tied to the group on Bitcoin, suggesting the campaign spanned multiple networks even as Tron carried the bulk of recent volume. The sanctioned Tron wallets sent more than $880,000 outbound over the same window.
Why it matters
The freeze crystallizes the role centralized stablecoin issuers now play in sanctions enforcement. Tether alone has frozen more than $182 million in USDT across five Tron wallets under its compliance policy since January, with this week's ISIS-K action pushing the cumulative tally meaningfully higher. The mechanics matter: unlike Bitcoin or Monero, USDT sits on a centralized issuer that can blacklist an address on demand, freezing the balance rather than just blocking the address at the chain's edge.
ISIS-K's shift toward Tron and Monero, despite both offering different privacy profiles, reflects how sanctioned actors route around Bitcoin's transparency. The Treasury's move signals that intelligence and on-chain analytics now move fast enough to follow them there.
Market impact
OFAC paired the ISIS-K designation with a separate action against a Brazil-linked network tied to Primeiro Comando da Capital, or PCC, which Treasury described as Latin America's largest criminal gang. That network laundered more than $30 million in U.S.-generated illicit proceeds and used crypto to move funds back to Brazil, expanding the day's enforcement footprint well beyond a single terrorist group.
Frequently asked questions
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How many crypto addresses did OFAC sanction against ISIS-K?
OFAC added 134 addresses on Wednesday: 131 on Tron and 3 on Monero. Chainalysis traced more than $1.4 million in inflows through the Tron wallets since 2023, with outbound flows above $880,000 over the same window.
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Why did Tether freeze the Tron wallets?
Tether froze balances on all 131 sanctioned Tron addresses immediately after the OFAC designation, under its sanctions compliance policy. The move is the largest single stablecoin-issuer freeze against a sanctioned terrorist organization on a single chain, and brings Tether's cumulative USDT freezes since January past…
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Which networks did ISIS-K use to solicit donations?
Chainalysis said ISIS-K's media arm, al-Azaim Foundation, solicited crypto donations through websites and messaging platforms across Tron, Monero and Bitcoin. Most recent volume moved on Tron, but historical donation addresses have been identified across all three networks.
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What is the Brazil-linked PCC action OFAC announced at the same time?
OFAC separately sanctioned a Brazil-linked network tied to Primeiro Comando da Capital, or PCC, which Treasury described as Latin America's largest criminal gang. That network laundered more than $30 million in U.S.-generated illicit proceeds and used crypto to return funds to Brazil.
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What does the freeze mean for USDT and Tron?
The action reinforces that centralized stablecoins and major non-Bitcoin chains sit inside OFAC's reach: USDT balances are freezable on demand, and Tether's cooperation cadence is fast enough to cut off flows in real time. For institutional USDT and Tron allocators, the case that these rails are outside U.S. sanctions…
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