＜p＞In the first part of this article, last month, we learnt what two-factor authentication (TFA) is and its three types. Now, let us see how we can activate TFA for various websites and applications. As secure as TFA is, unfortunately till date, you cannot use it everywhere on the web. However, most websites have recently implemented it, especially bankingsector ＜span＞websites, Gmail, Facebook, Twitter, Dropbox, Microsoft products like Xbox Live, OneDrive, Yahoo! Mail, Amazon web services, WordPress, DreamHost, LastPass, and many more.＜/span＞＜/p＞画面が切り替わりますので、しばらくお待ち下さい。 ※ご購入は、楽天kobo商品ページからお願いします。※切り替わらない場合は、こちら をクリックして下さい。 ※このページからは注文できません。