> For the complete documentation index, see [llms.txt](https://help.cloudstoragesec.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.cloudstoragesec.com/how-it-works/object-scanning.md).

# Scanning Overview

## Object Flow

There are a number of ways for objects to be placed into buckets including:

* Direct upload
* CLI
* Through applications providing interfaces and workflows with employees, customers, partners, etc.

However the objects arrive, Cloud Storage Security sees and deliver on three main interaction mechanisms with those objects:

<table data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>Event Driven Scanning</strong></td><td>For new files uploaded to a storage volume</td><td></td><td><a href="/pages/T1WuNLlcrPfhK7GEqxEH">/pages/T1WuNLlcrPfhK7GEqxEH</a></td></tr><tr><td><strong>Retro Scanning</strong></td><td>Via on-demand and/or scheduled requests for pre-existing files</td><td></td><td><a href="/pages/3OaQryec70w7bZrz2px4">/pages/3OaQryec70w7bZrz2px4</a></td></tr><tr><td><strong>API Driven Scanning</strong></td><td>Using a REST API interface</td><td></td><td><a href="/pages/QA5WjvMHq5gezSwVxaBp">/pages/QA5WjvMHq5gezSwVxaBp</a></td></tr></tbody></table>


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