@misc{246641, author = {William Newhouse}, title = {Multifactor Authentication for E-Commerce}, year = {2019}, month = {2019-07-30}, publisher = {Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NIST.SP.1800-17}, language = {en}, }