Options as robust as SEN are far and few between. Silvergate's one-time rival for digital asset clients, Signature Bank, recently said it was pulling back on deposits related to crypto companies. Under regulatory pressure, other banks are capping their deposits related to crypto companies at 10 per cent to 15 per cent, and may charge fees for having to deal with increased regulatory scrutiny. Without SEN, costs of fiat conversions could increase 20 per cent to 40 per cent, said Richard Crone, CEO of payment consultant Crone Consulting.