If your factoring company sent you a link asking for a photo of your ID, a selfie and a bank-account check, this page explains why. CarrierKYC builds that check for factoring companies; we sell to factors, not carriers. But the check exists to protect your money as much as theirs.
Fraudsters don't only invent fake carriers. They impersonate real ones, often by taking over an email account or an FMCSA login, and then ask the factor to send the carrier's payments to a new account. A factor that verifies who you are and who owns your bank account makes that much harder.