Editor's pick
Industry
Authentication Systems Eventually Return to Phone Numbers
Authentication systems are not designed only for success. They also need to recover from failure. Even in the era of passkeys and biometric authentication, phone numbers continue to serve as one of the last recovery paths.
2026/05/28 ·
Industry
A Strange Week of Subscription Bombing on Our Support Inbox
One day, our support inbox suddenly filled up with registration emails from real services we had never signed up for. Apparently, this kind of inbox flooding has a name: “Subscription Bombing.” Here’s a small operational story about modern spam and reducing impact instead of chasing perfect prevention.
2026/05/14 ·
![[EZSMS]Sub-account Feature Now Available for Pre-pay Users](https://blog.xoxzo.com/en//images/thumbnails/350x_/ez-sub-account-en.jpg)
Announcements
[EZSMS]Sub-account Feature Now Available for Pre-pay Users
Until now, the EZSMS sub-account feature was available only to contracted (Post-pay) users. We are pleased to announce that, in response to customer requests, the sub-account feature is now also available to Pre-pay users.
2026/03/04 ·
Industry
Why SMS Is Well Suited for Authentication
Why is SMS so well suited for authentication? By avoiding replies and conversation, SMS enables identity verification that is simple and less prone to failure. This article explores why SMS continues to be a standard method for authentication today.
2026/02/05 ·
Industry
Sometimes, the Kindest Message Is the One That Doesn’t Require a Reply
Most communication tools are designed with replies in mind. SMS is different. It asks for no reply, no read receipt, and creates no psychological pressure. This article gently explores why SMS continues to be used for authentication and notifications.
2026/01/16 ·
