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AgentProv

2026-03-27 · 2026-Q1

Telnyx PyPI Supply Chain Compromise

Primary layerL1 CredentialSecondary:L4 Code / Package

Should this run hold this key at all?

The question layer 1 asks, and failed here.
Fixable
Vendor patch
Vendor response
Patched
In the wild
Yes
Actor
Attacker

Target

Telnyx Python SDK

Impact

Credential harvester concealed in WAV audio file frame data; malicious code injected into telnyx/_client.py

Root cause

Telnyx PyPI token stolen during LiteLLM compromise; TeamPCP cascading attack

Sources

Catalog

Cite this: AgentProv incident record: Telnyx PyPI Supply Chain Compromise (2026-03-27). https://agentprov.com/incidents/2026-03-27-telnyx-pypi-supply-chain-compromise