What is the purpose of deleting files in the Data Storage section?

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Question as in the subject.

An inexperienced user can do damage to your website.

Data Storage
This is the directory where the plugin will store the security logs, the list of files marked as fixed in the core integrity tool, the cache for the malware scanner and 3rd-party plugin metadata. The plugin requires write permissions in this directory as well as the files contained in it. If you prefer to keep these files in a non-public directory (one level up the document root) please define a constant in the “wp-config.php” file named “SUCURI_DATA_STORAGE” with the absolute path to the new directory.

Select All File Path File Size Status Writable
wp-content/uploads/sucuri Exists Writable
wp-content/uploads/sucuri/sucuri-auditlogs.php 334.64K Exists Writable
wp-content/uploads/sucuri/sucuri-auditqueue.php 2.29K Exists Writable
wp-content/uploads/sucuri/sucuri-blockedusers.php 0B Does Not Exist Not Writable
wp-content/uploads/sucuri/sucuri-failedlogins.php 18B Exists Writable
wp-content/uploads/sucuri/sucuri-hookdata.php 93B Exists Writable
wp-content/uploads/sucuri/sucuri-ignorescanning.php 99B Exists Writable
wp-content/uploads/sucuri/sucuri-integrity.php 94B Exists Writable
wp-content/uploads/sucuri/sucuri-lastlogins.php 978B Exists Writable
wp-content/uploads/sucuri/sucuri-oldfailedlogins.php 18B Exists Writable
wp-content/uploads/sucuri/sucuri-plugindata.php 251.52K Exists Writable
wp-content/uploads/sucuri/sucuri-settings.php 2.02K Exists Writable
wp-content/uploads/sucuri/sucuri-sitecheck.php 3.08K Exists Writable
wp-content/uploads/sucuri/sucuri-trustip.php 92B Exists Writable
Delete