> For the complete documentation index, see [llms.txt](https://docs.idle.finance/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.idle.finance/developers/yield-tranches/security-management-policy.md).
# Security management policy
## Yield Tranches
The implementation for each Tranche can be upgraded through a shared Proxy Admin, which is [`0x9438904ABC7d8944A6E2A89671fEf51C629af351`](https://etherscan.io/address/0x9438904abc7d8944a6e2a89671fef51c629af351).
The owner of the Proxy Admin and of Yield Tranches' contracts is the `Treasury League Multisig`, which is [`0xFb3bD022D5DAcF95eE28a6B07825D4Ff9C5b3814`](https://etherscan.io/address/0xFb3bD022D5DAcF95eE28a6B07825D4Ff9C5b3814).
### Additional functions
As part of the Security Management policy, there is one more function in the `IdleCDO` contract.
{% tabs %}
{% tab title="Pause Guardian" %}
The pause guardian can pause, unpause and call `emergencyShutdown`. YTs contracts can be paused during emergency situations.
where
* Hypernative pauser multisig has a 2/5 threshold\
[`0xBaeCba470C229984b75BC860EFe8e97AE082Bb9f`](https://etherscan.io/address/0xBaeCba470C229984b75BC860EFe8e97AE082Bb9f)
The guardian can be changed at any time by the governance with a proposal.
{% endtab %}
{% endtabs %}
---
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