Millions of Santander customers simply use their voice to access their accounts.
In July 2010, the Mexican Government announced legislation for new security parameters by which all Mexican banks must abide when identifying and authenticating their customers. These included the use of personal questions, a 6-digit telephone PIN, OTP (one-time password), or biometrics.
José Ignacio Zorilla
Executive Director for Multichannel and Innovation
Banco Santander Mexico
The 6-digit telephone PIN that customers were allowed to use in the IVR under the new legislation was highly restrictive because customers could not use more than two consecutive numbers, nor repeat the same number, nor use a series of personal numbers related to personal data, such as birthdate. Consequently, more often than not, the 6-digit PIN that customers selected was very quickly forgotten. At the time, out of 1.4 million customer calls that were answered by live agents, 60-65% failed authentication, resulting in agents having to verify identity with the help of security questions. On average, agents spent 72 seconds on this verification process before being able to assist the customer with their needs. This time-consuming process impeded the caller from quickly completing their transaction and negatively impacted customer satisfaction.
The bank decided to explore an alternative to the six-digit PIN. The matrix of criteria they evaluated to arrive at a PIN-replacement choice included customer satisfaction, security, legal acceptance, cost, distribution, portability, and future technological potential. Santander’s leadership concluded that biometrics was the best option that met their multiple criteria requirements. After extensive analysis, voice biometrics was selected because it afforded convenience for the customer, coupled with a high level of security, at a reasonable price to the bank. Santander chose Nuance Security Suite with liveness and playback detection.