English
Temporary restriction on sending SMS
Dear valued customer,
We hope this email finds you well.
Currently, international text messaging (SMS) is temporarily restricted in some countries, including the United States and Canada, due to product upgrades related to information security precautions after detecting a number of activities resembling a phishing campaign.
- All international SMS sending has been temporarily disabled for approximately 40 hours, from March 23rd at 13:00 to 25th at 06:00 KST.
- Current Status
- The follow-up notification via SMS in Japan, the United States, and Canada
Available
- Sending SMS utilizing Sender IDs in Japan
Available
- Operation, Marketing SMS to the US, Canada, and other regions
Restricted
We understand that the SMS texting feature is essential for many of our customers, and we’d like to apologize for the inconvenience. We will restore service and enhance overall security as soon as possible to ensure that you can communicate with customers safely and seamlessly.
(Please see below for more information)
Issue History
- February 5th
- We detected mass numbers of fraudulent SMS text being sent out to people overseas using our platform, while impersonating some of our customers. We’ve blocked the texting feature and are in the process of enhancing the security of our system.
- February 16th
- Abnormal login detection and guidance feature based on the access region was released.
- February 18th
- The SMS follow-up notification feature used for chat conversations was unblocked after the security update.
- March 23rd
- All international texting features, including follow-up notifications, were temporarily restricted to complete an investigation and security upgrade by the SMS service provider. (Approximately 40 hours from 3/23 13:00 - 3/25 06:00 KST)
- Current Status (as of March 25th)
- The follow-up notifications via SMS in Japan, the United States, and Canada has been restored.
- Operation, Marketing messages via SMS can only be sent to Japan using Sender ID.