# Quotas in Malware Protection for S3
<a name="malware-protection-s3-quotas-guardduty"></a>

This section provides default quotas, often referred to as limits. Unless specified, each quota is Region-specific. To view default quotas specific to using the foundational GuardDuty service, see [Amazon GuardDuty quotas](guardduty_limits.md).

The following tables describe the multiple quotas that will apply to your AWS account.


| Quota name | AWS default quota value | Is it adjustable? | Description | 
| --- | --- | --- | --- | 
| Maximum S3 object size | 100 GB | No | The maximum S3 object size that GuardDuty will attempt to scan for malware.<br />Although this quota is not adjustable, if you need to scan larger objects, contact AWS Support to determine if GuardDuty can increase the quota for your use case. | 
| Extracted files | 100,000 | No | The maximum number of files that GuardDuty can extract and analyze in an S3 object. Compound files types are potentially subject to these limits. The file types include, but are not limited to, Multipurpose Internet Mail Extensions (MIME) encoded email messages, Compiled Python (PYC) files, Compiled HTML Help (CHM) files, all installers, and OpenDocument Format (ODF) documents.  S3 objects with an extremely high compression ratio between the S3 object size and the extracted content size may be subject to limits even if the extracted files are below this quota.  | 
| Maximum depth levels | 100 | No | The maximum levels of nesting that GuardDuty can extract in an S3 object. | 
| Maximum protected buckets | 25 | No | The maximum number of S3 buckets for which you can enable Malware Protection for S3. This quota limit is per account in each Region. |