IZABELA SZCZYGIEŁ; SEBASTIAN FLORCZAK; ADRIAN JASIAK. Two-factor authentication (2FA) comparison of methods and applications. Advances in Web Development Journal, Poland, v. 1, n. 1, 2023. DOI: 10.5281/zenodo.10050024. Disponível em: https://journals.edu.pl/index.php/awdj/article/view/9. Acesso em: 25 nov. 2025.