What happened
River Financial published research on Saturday concluding that criminals have shifted decisively away from Bitcoin and toward stablecoins for illicit crypto activity, CryptoBriefing reported. The Austin-based brokerage, which serves retail and institutional Bitcoin buyers, described the move as a dramatic reordering of how illegal flows route through the asset class. River's framing positions Bitcoin as a poor fit for illicit use, citing volatility, slower settlement on the base layer, and a transparent UTXO ledger that forensic firms like Chainalysis and TRM Labs have spent a decade mapping.
Stablecoins, by contrast, offer a dollar peg, near-instant transfers on chains like Tron and Ethereum, and liquidity pools deep enough to absorb large transfers without slippage. The report did not break out specific dollar volumes, but it aligns with a pattern industry analysts have flagged for two years. Chainalysis estimated in its 2024 Crypto Crime Report that stablecoins accounted for roughly 60% of illicit transaction volume, a share that has continued to climb as Tether's USDT issuance crossed $150 billion.
Why it matters
The political read on this is sharper than the technical one. For years, Bitcoin maximalists argued that BTC's pseudonymity made it a magnet for criminal use, a framing critics used to push restrictive policy. River's note flips that script and puts the regulatory target squarely on stablecoin issuers.
That matters because issuers like Tether and Circle hold a capability Bitcoin's base layer does not: they can freeze flagged addresses with a single transaction. Circle has frozen USDC tied to OFAC-sanctioned wallets repeatedly since 2022. Tether has blacklisted billions in USDT across Tron and Ethereum at the request of US and Israeli authorities.