@misc{1130716, author = {William Newhouse}, title = {Multifactor authentication for e-commerce:}, year = {2019}, month = {2019-07-01 04:07:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NIST.SP.1800-17}, language = {en}, }