Google Drive DLP: A Complete Guide to Data Protection
Everything the modern business leader needs to know about data loss prevention in Google Drive.
By The Mimecast Cyber Insights Blog Team ·
Key Points
Uncover Google Drive's powerful built-in tools for identifying and preventing unauthorized sharing of confidential data
Learn how organizations can implement robust security measures to safeguard their most valuable digital assets
Google Drive has become a central hub for collaboration, file sharing, and external communication. But with increased accessibility comes increased risk. Data Loss Prevention (DLP) is no longer just about storage controls. It’s about understanding how sensitive data moves across users, files, and conversations.
This guide explains how Google Drive DLP works, where it falls short, and how modern DLP strategies help organizations reduce risk across collaboration environments.
What is DLP in Google Drive?
Data Loss Prevention, or DLP, refers to a set of tools and techniques used to prevent sensitive information from being leaked or lost. It involves identifying, classifying, and monitoring data to prevent it from being accessed, copied, or transmitted outside of authorized channels. Data loss prevention software focused on Insider Risk Management, like Mimecast, can help organizations protect their confidential data and comply with regulations and data protection laws.
Google Drive DLP is one component of a broader data loss prevention strategy that spans email, collaboration tools, and communication workflows. DLP solutions for Google Drive may be especially important for highly regulated organizations. Banks and healthcare providers, for example, must comply with FINRA and HIPAA regulations for electronically stored information (ESI).
Does Google Drive have DLP?
Google Drive has a DLP feature called "DLP for Drive," which is available to Google Workplace customers subscribed to Google Cloud Identity Premium. This feature allows organizations to set policies to automatically scan files for sensitive information and prevent users from sharing or downloading files containing such information. It also provides options for administrators to create custom rules to prevent accidental sharing of sensitive data.
What DLP detections are available for Google Drive?
Google Drive's Data Loss Prevention (DLP) features includes a wide range of built-in detection templates to help organizations identify and protect sensitive data. Some examples of DLP detections available for Google Drive include:
Social Security numbers
Credit card numbers
Driver's license numbers
Payment card industry (PCI) data
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Personally identifiable information (PII)
Protected health information (PHI)
These detections can be configured to meet an organization's specific data protection needs. Additionally, administrators can create custom detection rules to identify other types of sensitive data. Detection templates help identify risk, but effective DLP also requires context, remediation, and behavior-aware response.
What to do When Google Workspace Plans Lack DLP Support?
For organizations on Google Workspace Business Starter, Business Standard and Business Plus plans, DLP support is not available. Despite this, there are several steps that can be implemented to protect sensitive information:
Use strong, unique passwords and MFA
Ensure all users follow strong password practices and enable multi-factor authentication (MFA). This reduces the chance that unauthorized users gain access to sensitive files stored or shared through Google Drive.
Limit sharing permissions across Drive and Docs
Restrict link-sharing options, disable public or “anyone with the link” access, and limit sharing to trusted individuals or groups. These settings help prevent accidental data exposure and give you greater control over how information flows across your environment.
Regularly review and monitor account activity
Use Google Workspace’s audit logs and security reports to track unusual file-sharing behavior, unexpected login locations, or large downloads. Early visibility into anomalies helps surface potential risks before they escalate.
Train employees on safe data-handling practices
Educate staff on detecting phishing attempts, avoiding risky downloads, and properly handling sensitive information. A trained workforce becomes an effective first line of defense when automated DLP safeguards are unavailable.
How do I enable DLP for Google Drive?
To enable Data Loss Prevention (DLP) for Google Drive, you need to have a Google Workspace account with the appropriate permissions as an administrator. Only administrators can change DLP settings for Google Drive. The DLP settings within Google Drive are part of the account Security controls.
Once you have enabled DLP for your organization, you can monitor and manage DLP policies from the Data Loss Prevention dashboard in the Admin Console. Below are steps to set up your DLP Drive rules:
1. Access the Google Admin Console
Sign in to the Google Admin Console using an administrator account with the proper permissions. Only super admins or delegated admins with security roles can configure Google Drive DLP.
2. Go to the Data Protection Settings
From the Admin Console dashboard, navigate to Security > Data Protection. This is where Google Workspace manages all DLP policies across apps, including Google Drive.
3. Create a New DLP Rule for Drive
Select Manage Rules, then click Add Rule. Choose New Rule or New Rule from Template if you want to start with predefined patterns for sensitive data.
4. Configure the Rule Details
Give your rule a clear name and choose its scope, such as a specific Organizational Unit or Group. Define the conditions that should trigger the policy. For example, detecting sensitive information types, matching custom content classifiers, or identifying files shared outside the organization.
5. Set the Actions for Policy Violations
Choose what happens when Drive content matches your DLP condition. Actions might include:
Blocking external sharing
Sending alerts to admins
Requiring users to justify sharing
Applying Drive labels or classification tags
6. Review and Activate the Rule
Double-check the rule configuration, scope, triggers, and actions. When ready, click Create Rule to turn it on. The policy will begin monitoring Drive content based on your defined conditions.
You can use the Data Protection Insights Dashboard to then monitor any DLP incidents or adjust policies as needed.
Can users turn off DLP for Google Drive?
Individual users cannot turn off Data Loss Prevention (DLP) for Google Drive on their own. DLP settings and policies are typically managed by administrators or IT departments within organizations using Google Workspace (formerly G Suite).
Administrators have control over DLP settings and can define the rules and policies that apply to the organization's Google Drive environment. These rules are enforced across the organization and are not typically configurable by individual users.
Are my files in Google Drive private?
Google Drive offers privacy and security features to protect your files, but it's important to understand the extent of privacy and control you have over your data.
By default, files stored in Google Drive are private to the account owner, meaning only the owner has access to the files unless explicitly shared with others. However, there are certain aspects to consider:
Sharing and permissions: You can share files and folders with specific individuals or groups, granting them varying levels of access (such as view, comment, or edit). It's crucial to manage your sharing settings and ensure you only share files with trusted parties.
Account security: Your Google account's login credentials (username and password) are essential for accessing your files in Google Drive. It's important to keep your account credentials secure and enable two-factor authentication for an extra layer of protection.
Encryption: Google Drive uses encryption to protect your files while they are stored on Google's servers. This helps safeguard your data from unauthorized access.
Account ownership: When using a workplace Google Drive account, the administrators on the account can access all the files you create or upload. Access should be in accordance with company policy and data security best practices.
While Google takes measures to protect your data, it's important to remember that no system is entirely foolproof, and it's always advisable to take additional precautions to protect sensitive content or confidential information.
Are Google Drive files encrypted? What encryption does Google Drive use?
Yes, files stored in Google Drive are encrypted. Google Drive uses multiple layers of encryption to help protect your data.
In-transit encryption: When you upload or download files to/from Google Drive, the data is encrypted during transit. This means that the files are protected as they travel between your device and Google's servers using HTTPS (Hypertext Transfer Protocol Secure), which is a secure communication protocol.
At-rest encryption: Files stored in Google Drive are also encrypted at rest, which means they are encrypted while they are stored on Google's servers. This helps protect your data even when it is not actively being transmitted. Google uses AES256 bit encryption to safeguard your files.
It's important to note that Google holds the encryption keys for your files stored in Google Drive. This allows them to provide features such as content indexing, search, and collaboration. However, this also means that Google can theoretically access your files. It's worth considering this aspect when storing highly sensitive or confidential information in Google Drive.
If you require additional layers of encryption and control over your data, you can use client-side encryption tools or services that encrypt your files before they are uploaded to Google Drive. This way, the files are encrypted with a key that only you possess, and Google only stores the encrypted data without having access to the decryption key.
Can I block Google Drive sharing?
Yes, it is possible to block sharing in Google Drive through administrative controls. As an administrator of a Google Workspace organization, you can manage and configure sharing settings for Google Drive to control the sharing capabilities within your domain.
Here are some options to control or restrict sharing in Google Drive:
Disable external sharing: You can configure the sharing settings to prevent users from sharing files or folders with individuals outside of your organization. This ensures that files can only be shared with users who are part of your Google Workspace domain.
Restrict sharing options: You can limit the sharing options available to users. For example, you can disable the ability to share files publicly or prevent users from sharing files with anyone outside of specific domains.
Manage default sharing settings: You can set default sharing settings for files and folders created within your organization. This helps ensure that newly created files are automatically configured with the desired sharing settings.
Control sharing permissions: Administrators can define the level of sharing permissions available to users. For instance, you can limit sharing to view-only access, preventing users from granting edit or commenting rights to others.
These options allow administrators to establish sharing policies and restrict sharing capabilities as needed to align with organizational security and privacy requirements.
DLP Limitations in Google Workspace Enterprise
While Google Workspace Enterprise includes native DLP capabilities, these features often fall short of what security teams need for full visibility, control, and risk reduction across modern collaboration environments. Below are the most important gaps organizations should be aware of:
1. Limited Visibility Into Sensitive Data and Exposure Risk
Google Workspace DLP can detect sensitive data patterns, but it does not provide a real-time, unified view of:
Where sensitive data lives across Google Drive
How broadly files are shared, including external or public access
Whether access levels violate policy or increase exposure risk
How data exposure changes over time
Admins receive individual violation reports, but not the continuous, organization-wide data posture visibility required for proactive risk management.
2. No Scalable Remediation for Misconfigured Access
Google Workspace DLP alerts on policy violations, but it cannot automatically:
Remove or restrict external collaborators
Disable public link sharing
Tighten internal access on overshared files
Apply bulk permission updates
Security teams must adjust permissions manually file-by-file — a process that quickly becomes unmanageable at enterprise scale.
3. Partial File Scanning and Limited Coverage of Unstructured Data
Google Workspace DLP only analyzes the first 10MB of extracted text and up to 50MB for non-native file formats. It also struggles with rich content, such as:
Scanned PDFs
Screenshots
Images
Large files common in design, legal, or healthcare operations
This creates blind spots where sensitive data may remain undetected.
How does Mimecast support DLP for Google Drive?
Mimecast Aware provided enhanced Data Loss Prevention (DLP) capabilities for Google Drive by identifying and addressing risky activities related to sharing sensitive information and possible data breaches. By seamlessly integrating with Google Drive's API, Aware continually monitors and analyzes its content, enabling faster and more efficient DLP measures. Alongside other data security best practices like retention policies, multi-factor authentication (MFA), and restricted permissions, Aware provides robust safeguards for data loss prevention within Google Drive.
