# GCP - Cloud Functions Persistence

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## Cloud Functions

For more info about Cloud Functions check:

{% content-ref url="../gcp-services/gcp-cloud-functions-enum.md" %}
[gcp-cloud-functions-enum.md](../gcp-services/gcp-cloud-functions-enum.md)
{% endcontent-ref %}

### Persistence Techniques

* **Modify the code** of the Cloud Function, even just the `requirements.txt`
* **Allow anyone** to call a vulnerable Cloud Function or a backdoor one
* **Trigger** a Cloud Function when something happens to infect something

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