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[email] Temporary Restriction on sending SMS

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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.
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All international SMS sending has been temporarily disabled for approximately 40 hours, from March 23rd at 13:00 to 25th at 06:00 KST.
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Current Status
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The follow-up notification via SMS in Japan, the United States, and Canada Available
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Sending SMS utilizing Sender IDs in Japan Available
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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 weโ€™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
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February 5th
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We detected mass numbers of fraudulent SMS text being sent out to people overseas using our platform, while impersonating some of our customers. Weโ€™ve blocked the texting feature and are in the process of enhancing the security of our system.
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February 16th
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Abnormal login detection and guidance feature based on the access region was released.
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February 18th
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The SMS follow-up notification feature used for chat conversations was unblocked after the security update.
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March 23rd
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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)
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Current Status (as of March 25th)
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The follow-up notifications via SMS in Japan, the United States, and Canada has been restored.
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Operation, Marketing messages via SMS can only be sent to Japan using Sender ID.
Upcoming Plan
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Enhancing IP and payment-side security is in progress, and we will deploy security policies to minimize inconvenience to our customers. From this point forward, all messages via SMS will be restored and fully available.
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You may check the service status updates here โ†’ https://status.channel.io/
Please note that :
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Text messages in South Korea work as usual.
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You will not be charged for the undelivered SMS if you attempted to send SMS messages after the block(2/5).
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Please make sure to use MFA we provide to secure your channels.
Although Channel.io was able to quickly detect the fraudulent activities and prevent damages, we were unable to clearly inform you upfront about the limitations of our features as part of this security enhancement. We sincerely apologize for any inconvenience this may have caused.
We will notify you as soon as the upgrade is complete and the features are available again. If you have any questions or concerns, please do not hesitate to contact us.
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Talk to Channel.io https://root.channel.io/support-bots/53297
Thank you for your patience and understanding.

Korean(ํ•œ๊ตญ์–ด)

ํ•ด์™ธ ๋ฌธ์ž๋ฉ”์‹œ์ง€(SMS) ์ „์†ก ๊ธฐ๋Šฅ ์ œํ•œ ์•ˆ๋‚ด

์•ˆ๋…•ํ•˜์„ธ์š”, ์ฑ„๋„ํ†ก์ž…๋‹ˆ๋‹ค.
ํ˜„์žฌ ์ •๋ณด๋ณด์•ˆ ์˜ˆ๋ฐฉ์กฐ์น˜ ๊ด€๋ จ ์ œํ’ˆ ์—…๊ทธ๋ ˆ์ด๋“œ ์ž‘์—…์œผ๋กœ ์ธํ•˜์—ฌ ๋ฏธ๊ตญ, ์บ๋‚˜๋‹ค๋ฅผ ํฌํ•จํ•œ ์ผ๋ถ€ ๊ตญ๊ฐ€์—์„œ ๋ฌธ์ž ๋ฉ”์‹œ์ง€(SMS) ์ „์†ก์ด ์ œํ•œ๋˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.
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๋Œ€ํ•œ๋ฏผ๊ตญ ์‹œ๊ฐ„ ๊ธฐ์ค€ 3์›” 23์ผ(๋ชฉ) 13์‹œ ๊ฒฝ ~ 25์ผ(ํ† ) ์ƒˆ๋ฒฝ 6์‹œ ๊ฒฝ๊นŒ์ง€ ์•ฝ 40์‹œ๊ฐ„ ๋™์•ˆ ๋ชจ๋“  ํ•ด์™ธ SMS ์ „์†ก์ด ์ผ์‹œ ์ œํ•œ๋จ
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ํ˜„์žฌ
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์ผ๋ณธ, ๋ฏธ๊ตญ, ์บ๋‚˜๋‹ค ํŒ”๋กœ์—… ์•Œ๋ฆผ SMS ์ „์†ก ์ƒํƒœ ์ •์ƒ
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์ผ๋ณธ ์ง€์—ญ Sender ID ๋ฅผ ํ™œ์šฉํ•œ ๋งˆ์ผ€ํŒ… SMS ์ „์†ก ์ƒํƒœ ์ •์ƒ
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๋ฏธ๊ตญ, ์บ๋‚˜๋‹ค ์ง€์—ญ ์˜คํผ๋ ˆ์ด์…˜, ๋งˆ์ผ€ํŒ… SMS ๋ฐ ๊ธฐํƒ€ ์ง€์—ญ SMS ์ „์†ก ์ƒํƒœ ์ œํ•œ
์ฑ„๋„ํ†ก์€ ๊ณ ๊ฐ๊ณผ์˜ ์ปค๋ฎค๋‹ˆ์ผ€์ด์…˜์— SMS ๋ฉ”์‹œ์ง€์˜ ์ค‘์š”์„ฑ์— ๋Œ€ํ•˜์—ฌ ์ถฉ๋ถ„ํžˆ ์ธ์ง€ํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.
์•ˆ์ „ํ•˜๊ณ  ์›ํ™œํ•˜๊ฒŒ ๊ณ ๊ฐ๊ณผ ๋Œ€ํ™”ํ•  ์ˆ˜ ์žˆ๋„๋ก ์ตœ๋Œ€ํ•œ ๋น ๋ฅธ ์‹œ์ผ ๋‚ด์— ๋ณด์•ˆ์ •์ฑ… ๋ฐฐํฌ ๋ฐ ์„œ๋น„์Šค ์—…๊ทธ๋ ˆ์ด๋“œ๋ฅผ ์ง„ํ–‰ํ•˜์—ฌ ์ „๋ฐ˜์ ์ธ ๋ณด์•ˆ์„ ๊ฐ•ํ™”ํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค.
(์ƒ์„ธ ๋‚ด์šฉ์€ ์•„๋ž˜๋ฅผ ์ฐธ์กฐํ•ด ์ฃผ์‹œ๊ธฐ ๋ฐ”๋ž๋‹ˆ๋‹ค)
์ƒํ™ฉ์˜ ๊ฒฝ๊ณผ
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2์›” 5์ผ
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์ฑ„๋„ํ†ก์„ ์ด์šฉํ•ด ํ•ด์™ธ๋กœ ๋Œ€๋Ÿ‰์˜ ์‚ฌ๊ธฐ์„ฑ SMS ๋ฌธ์ž๋ฅผ ๋ฐœ์†กํ•˜๋ ค๋Š” ์‹œ๋„ ๋ฐœ์ƒ, ๋ณด์•ˆํŒ€์—์„œ ๋ฐœ๊ฒฌ ์ฆ‰์‹œ ๋ฌธ์ž ์ „์†ก ๊ธฐ๋Šฅ์„ ์ฐจ๋‹จํ•˜๊ณ  ์ฆ‰๊ฐ์ ์ธ ์‹œ์Šคํ…œ ๋ณด์•ˆ ๊ฐ•ํ™” ์ž‘์—…์„ ์‹œ์ž‘ํ–ˆ์Šต๋‹ˆ๋‹ค.
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2์›” 16์ผ
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์ ‘์† ์ง€์—ญ์„ ๊ธฐ๋ฐ˜์œผ๋กœ ํ•˜๋Š” ์ด์ƒ ๋กœ๊ทธ์ธ ๊ฐ์ง€ ๋ฐ ์•ˆ๋‚ด ๊ธฐ๋Šฅ์„ ์—…๋ฐ์ดํŠธ ํ•˜์˜€์Šต๋‹ˆ๋‹ค.
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2์›” 18์ผ
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๋ณด์•ˆ ์—…๋ฐ์ดํŠธ ํ›„ ์ฑ„ํŒ… ์ƒ๋‹ด์— ํ™œ์šฉ๋˜๋Š” SMS ์ „์†ก ํŒ”๋กœ์—… ์•Œ๋ฆผ ๊ธฐ๋Šฅ์˜ ์ฐจ๋‹จ์„ ํ•ด์ œํ•˜์˜€์Šต๋‹ˆ๋‹ค.
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3์›” 23์ผ
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ํ•ด์™ธ SMS ์„œ๋น„์Šค ์ œ๊ณต์‚ฌ์˜ ์กฐ์‚ฌ ๋ฐ ๋ณด์•ˆ ์—…๊ทธ๋ ˆ์ด๋“œ๋ฅผ ์™„๋ฃŒํ•˜๊ธฐ ์œ„ํ•ด, ์ผ์‹œ์ ์œผ๋กœ ํŒ”๋กœ์—… ์•Œ๋ฆผ์„ ํฌํ•จํ•œ ๋ชจ๋“  ํ•ด์™ธ ๋ฌธ์ž ๋ฐœ์†ก ๊ธฐ๋Šฅ์ด ์ œํ•œ๋˜์—ˆ์Šต๋‹ˆ๋‹ค. (๋Œ€ํ•œ๋ฏผ๊ตญ ์‹œ๊ฐ„ 3/23 13์‹œ ~ 3/25 6์‹œ ๊ฒฝ, ์ด 40์—ฌ ์‹œ๊ฐ„)
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ํ˜„์žฌ (3์›” 25์ผ ๊ธฐ์ค€)
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์ผ๋ณธ, ๋ฏธ๊ตญ, ์บ๋‚˜๋‹ค ์ง€์—ญ์˜ ํŒ”๋กœ์—… ์•Œ๋ฆผ SMS ์ „์†ก์€ ์ •์ƒํ™” ๋˜์—ˆ์œผ๋ฉฐ,
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์˜คํผ๋ ˆ์ด์…˜ ๋ฐ ๋งˆ์ผ€ํŒ… ๋ฉ”์‹œ์ง€ ์ „์†ก์€ Sender ID๋ฅผ ์‚ฌ์šฉํ•˜๋Š” ์ผ๋ณธ ์ง€์—ญ ์ „์†ก๋งŒ ๊ฐ€๋Šฅํ•ฉ๋‹ˆ๋‹ค.
ํ–ฅํ›„ ์กฐ์น˜ ๊ณ„ํš
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IP ๋ฐ ๊ฒฐ์ œ ์ชฝ ๋ณด์•ˆ ๊ฐ•ํ™” ์ž‘์—…์ด ํ˜„์žฌ ์ง„ํ–‰ ์ค‘์— ์žˆ์œผ๋ฉฐ, ์‹ค์‚ฌ์šฉ ๊ณ ๊ฐ์˜ ๋ถˆํŽธ์„ ์ตœ์†Œํ™”ํ•˜๋Š” ์ •์ฑ…์„ ๋ฐฐํฌํ•  ์˜ˆ์ •์ž…๋‹ˆ๋‹ค. ์ด ์‹œ์ ๋ถ€ํ„ฐ SMS๋ฅผ ํ†ตํ•œ ๋ชจ๋“  ๋ฉ”์‹œ์ง€ ์ „์†ก์„ ์ •์ƒ์ ์œผ๋กœ ์ด์šฉํ•˜์‹ค ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
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์„œ๋น„์Šค ํ˜„ํ™ฉ ์—…๋ฐ์ดํŠธ ํ™•์ธํ•˜๊ธฐ โ†’ https://status.channel.io/
์ฐธ๊ณ ์‚ฌํ•ญ
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๋Œ€ํ•œ๋ฏผ๊ตญ ๋‚ด ๋ฌธ์ž๋ฉ”์‹œ์ง€๋Š” ์ •์ƒ์ ์œผ๋กœ ์ „์†ก๋ฉ๋‹ˆ๋‹ค.
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์ตœ์ดˆ ์ฐจ๋‹จ ์กฐ์น˜(2/5) ์ดํ›„ ์‹œ๋„ํ•œ ๋ฌธ์ž ์ „์†ก ๋‚ด์—ญ ์ค‘ ๋ฏธ์ „์†ก๋œ ๊ฑด์€ ๋น„์šฉ ์ฐจ๊ฐ๋˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค.
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์ฑ„๋„์˜ ์•ˆ์ „ํ•œ ์šด์˜์„ ์œ„ํ•ด ๋‹ค์ค‘ ์ธ์ฆ ๊ธฐ๋Šฅ ์‚ฌ์šฉ์„ ๊ถŒ์žฅํ•ฉ๋‹ˆ๋‹ค.
๋น„๋ก ์ฑ„๋„ํ†ก์ด ๋น ๋ฅด๊ฒŒ ๋ฌธ์ œ ์ƒํ™ฉ์— ๋Œ€์‘ํ•˜๊ณ  ์—…๊ทธ๋ ˆ์ด๋“œ ์ž‘์—…์„ ์‹œ์ž‘ํ•˜์˜€์œผ๋‚˜, ์ด๋ ‡๊ฒŒ ๋ณด์•ˆ ์กฐ์น˜๋ฅผ ๊ฐ•ํ™”ํ•˜๋Š” ๊ณผ์ •์—์„œ ์ผ๋ถ€ ๊ธฐ๋Šฅ์ด ์ œํ•œ๋˜๋Š” ์ ์„ ์‚ฌ์ „์— ๋ช…ํ™•ํ•˜๊ฒŒ ์•ˆ๋‚ดํ•˜์ง€ ๋ชปํ–ˆ์Šต๋‹ˆ๋‹ค. ์ด๋กœ ์ธํ•˜์—ฌ ๋ฐœ์ƒํ•˜๋Š” ๋ชจ๋“  ๋ถˆํŽธ ์‚ฌํ•ญ์— ๋Œ€ํ•˜์—ฌ ์ง„์‹ฌ์œผ๋กœ ์‚ฌ๊ณผ๋ฅผ ๋“œ๋ฆฝ๋‹ˆ๋‹ค.
์—…๊ทธ๋ ˆ์ด๋“œ ๋ฐฐํฌ ์™„๋ฃŒ ๋ฐ ๋ฌธ์ž๋ฉ”์‹œ์ง€ ์ „์†ก์ด ์ •์ƒํ™” ๋˜๋Š”๋Œ€๋กœ ๋ฐ”๋กœ ์•Œ๋ ค๋“œ๋ฆฌ๊ฒ ์Šต๋‹ˆ๋‹ค.
๊ด€๋ จํ•˜์—ฌ ๊ถ๊ธˆํ•œ ์ ์€ ์–ธ์ œ๋“ ์ง€ ๋ง์”€ ๋‚จ๊ฒจ์ฃผ์„ธ์š”.
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์ฑ„ํŒ…์ƒ๋‹ด ๋ฐ”๋กœ ๊ฐ€๊ธฐ https://root.channel.io/support-bots/53297
๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค.