This announce is for customers who have linked notifications from Mackerel to Typetalk.
Typetalk forcibly rewrote some users' tokens at 6 p.m. on 4 August, 2023 (JST) to protect against information leakage due to unauthorised access. As a result, notifications from Mackerel to Typetalk may have stopped.
In this case, please replace the tokens included in URLs with tokens with new ones from the notification channel settings (Typetalk notifications).
For more information on this security incident, see Typetalk's official news article (Important notice: Data breach incident impacting Typetalk users (August 3, 2023)).