# JetBrains tells Cadence users to rotate credentials after TeamCity breach

_Saturday, September 5, 2026 at 12:52 PM EDT · Security, Infrastructure · Latest · Tier 1 — Major_

![JetBrains tells Cadence users to rotate credentials after TeamCity breach — Primary](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjH4sbUEhtXF9n1_8s2f6ChnKMmjUv4Ht-DvEtZyLDPuSNhKFoi41aNlu3-u5kJLXUva81rNFwlsprMXE11cnbXc_es968eO-ANvWm0j1Cyi9SaoVUfneQqNINCR7lRs3qkkYdsSoyMu34Mgxs7B4pKclAt4atPw8B-RCFOTChtgeji9NTes_NEdZ2KKu2_/s1700-nu-rw-lo-l85-e365/jet.jpg)

JetBrains is telling Cadence users to revoke or rotate credentials and secrets after attackers exploited a critical TeamCity vulnerability to breach a Cadence environment. The company said the attackers accessed a 2024 server backup and could have reached storage associated with current users, including source code, email addresses, and credentials. JetBrains said it invalidated Cadence-plugin access tokens and took the affected server offline. The intrusion occurred between August 8 and 24, according to the report.

## Sources

- [The Hacker News](https://thehackernews.com/2026/09/attackers-breached-jetbrains-cadence.html)

---
Canonical: https://techandbusiness.org/newswire/cHb2g6S5Zzs5fo54_yk4AV
Retrieved: 2026-09-05T20:25:53.820Z
Publisher: Tech & Business (techandbusiness.org)