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[Investigating][Severity: Moderate][Intrusion]

SmartNews: points and rewards system intrusion

Intruders made unauthorized operations in the SmartNews points and rewards system; point exchange, push notifications and other features were stopped.

Disclosed

2026-11-01 15:00

Organizations involved

1

Leaked or at risk

Unknown

Downtime

Unknown

What happened

  1. Through 1 November, a third party accessed part of the systems without authorization. [2]

  2. SmartNews said it had stopped some features of SmartNews and, in an update as of 15:00, confirmed the unauthorized access. It treats this separately from the SmartNews: server flaw exploited, service halted case of 22 October. [1] [2] [3]

Impact

Unauthorized operations were found in the points and rewards system, and point exchange was stopped; the effect on user accounts is under investigation. Personalization, push notifications and some rewards are unavailable. Ad delivery continues, and the effect on ad systems is being checked. [2]

Response

The affected systems were stopped and credentials are being revoked and replaced. Users are asked to report unexpected changes to their points or rewards. [2]

Timeline

  1. Started 2026-10-31
  2. Detected, Disclosed 2026-11-01
  3. 1 days

Attack or cause

Method
[Intrusion]
Impact
[Service outage]
Entry point
Unknown

Data exposed or at risk

–

Services hit

Organizations involved

Sources

  1. [1][Official]セキュリティ上の問題への対応について(2026/11/1)SmartNews · 2026-11-01
  2. [2][Official]セキュリティ上の問題への対応について(続報:2026年11月1日15時時点)SmartNews · 2026-11-01 15:00
  3. [3][News]スマートニュースに不正アクセス アプリの一部機能を停止Nikkei · 2026-11-02 13:56