Janet Yellen Expresses Concerns About Cryptocurrency

Janet Yellen, during her confirmation hearing for U.S. Treasury Secretary, expressed concerns that cryptocurrencies are used 'mainly for illicit financing.'

The historically important point is the procedural stage captured by this event: Janet Yellen Expresses Concerns About Cryptocurrency. The action affected Bitcoin directly where Bitcoin fell within the rule or market being discussed, while broader digital-asset language is not treated as Bitcoin-specific.

Placed in the broader 2021 chronology, the event helps show how Bitcoin was simultaneously becoming a subject of institutional finance, public policy, technology development and mass culture. Its inclusion reflects the specific historical development described above rather than a claim that every related market reaction was caused by this event alone.