Automated Transaction Systems refer to the misuse of rapid, algorithmic, or system-driven financial transactions to launder money. Instead of manual transfers, launderers programmatically orchestrate high-frequency, structured transfers across numerous accounts, banks, or payment platforms to obscure illicit funds’ origins. By leveraging automation (e.g. scripting transactions or scheduling instant payments), criminals can quickly layer dirty money through a web of “pass-through” accounts, making detection difficult. Funds may circulate through dozens of accounts (often across multiple institutions and countries) in a short time, breaking the audit trail [1]. This technique exploits the speed and connectivity of modern banking and payment systems: for example, criminals have used Bitcoin and other virtual assets to rapidly shuffle value via automated transfers (FinCEN noted that Bitcoin transaction volumes were artificially inflated by “extensive use of automated layering” in some cases) [2]. The result is a complex layering scheme that quickly distances funds from their criminal source and frustrates law enforcement.
Launderers employing this method often control or infiltrate multiple accounts (sometimes hundreds) through money mules or shell companies. They use software or scripting to execute sequences of transactions: for instance, splitting a large sum into many small transfers (classic structuring) or rapidly bouncing funds between accounts (“ping-pong” or chain transfers) to generate a dense transaction trail. These transfers can be timed and structured to avoid triggering automatic bank reports (e.g., always just under reporting thresholds, or timed outside of typical business hours). In more sophisticated cases, criminals integrate cross-border and cross-platform elements – e.g. moving money from a digital bank in one country to a fintech payment wallet in another, then to a cryptocurrency exchange – all in an automated flow. FATF describes cases where cyber-fraud proceeds are rapidly layered through a series of pass-through transactions across domestic and foreign accounts, often with criminals directly controlling mule accounts via online banking access [1]. This makes Automated Transaction Systems a potent technique for quickly obscuring illicit origins and complicating investigators’ ability to “follow the money”.