Remittance companies Remitly ($RELY) and Western Union ($WU) face a trifecta of risk: slowing growth in key markets; more affordable competition from peer-to-peer apps, cryptocurrency, or card-to-card options; and now, federal scrutiny of cross-border transfers tied to cartels that the United States designated terrorist groups in February. Remitly is the “fastest growing partner” of Grupo Elektra/Banco Azteca, a conglomerate accused of cartel money laundering.