Cloud file links can create unique challenges in eDiscovery because the information referenced in an email may not actually be stored within the email itself. Before collection begins, legal teams should confirm where linked files reside, who has access, which versions are available, how the links should be preserved, and how the collected data will be reviewed.
As organizations continue moving collaboration and document storage into platforms like Microsoft 365, Google Workspace, Box, and other cloud environments, email discovery has become more complex. A message may reference important information without containing the actual file. Instead, the email may include a link directing users to a document stored somewhere else.
These linked files can contain critical evidence, but they require a different approach than traditional attachments.
For legal teams managing cloud file links eDiscovery, the challenge is not simply collecting the email. It is understanding the relationship between the message, the linked file, access permissions, and the surrounding context needed for defensible discovery.
A thoughtful modern data collection strategy should account for these relationships before collection begins.
Traditional email attachments are typically included within the email message itself. When the email is collected, the attachment is collected with it.
Cloud file links work differently.
Instead of attaching a file directly, a user may insert a link to a document stored in:
The email becomes a reference point rather than the location of the actual document.
This creates additional questions for legal teams:
These considerations make linked files in eDiscovery different from traditional email collection.
Before collecting email and related cloud data, legal teams should work with their eDiscovery provider to confirm the following.
1. Identify Where Linked Files Are Stored
The first step is understanding where linked files actually live.
Ask:
A single email population may contain links pointing to multiple environments. Identifying those sources early helps prevent incomplete collections.
2. Confirm Access Permissions
Unlike traditional attachments, cloud files are often governed by permissions.
A linked document may have different access settings depending on:
Legal teams should confirm:
Understanding access history can be important when determining whether a document was available to specific custodians or recipients.
3. Understand File Versions and Modification History
A major challenge with cloud file links is that the linked document may change after the email is sent. An employee may email a link to a business plan in January, for example, and the document may be updated several times before collection occurs in March.
This can raise an important question: How significant are those changes to the matter, and could earlier versions be relevant?
Teams should understand:
Collection tools that pull linked files with email will generally collect the current version of the document. Earlier versions may be available separately, but determining which version existed at the time of the original communication can be difficult and may require additional investigation and manual comparison.
For that reason, version history should be evaluated based on the needs of the matter. In some cases, the current version may be sufficient. In others, changes to a linked document could become an important part of the discovery analysis.
4. Preserve the Link Context
The relationship between the email and the linked file may provide important context.
The email may explain:
When collecting cloud-linked files, legal teams should consider preserving:
The goal is not simply collecting the document. It is preserving the surrounding context that explains why the document matters.
Different platforms handle cloud file exports differently.
Before collection begins, ask:
A provider experienced in cloud attachments discovery and modern data sources can help determine the right collection approach based on the technology environment involved.
6. Consider Review Implications
Cloud file links can affect how documents are reviewed after collection.
Review teams may need to understand:
A disconnected collection can create unnecessary review challenges. Reviewers may see the document but lose the context explaining why it was shared or discussed.
Failing to address cloud file links during collection can create several risks.
Missing Relevant Documents
If a collection captures only emails and ignores linked files, important information may be left behind.
Collecting the Wrong Version
Without version history, teams may review a document that does not reflect the information available during the relevant period.
Losing Context
A document without the related email conversation may not provide the full story behind why it was created or shared.
Access and Preservation Issues
Changing permissions, deleted files, or expired links can make collection more difficult if not addressed early.
Review Inefficiencies
Disconnected files can increase review time because teams must manually reconstruct relationships between communications and documents.
Modern discovery requires more than traditional collection methods. Legal teams need workflows designed for today's data environments, where important information may exist across email, cloud platforms, collaboration tools, and other connected systems.
Array helps law firms and corporate legal teams manage complex data collection challenges through a combination of experienced professionals, advanced technology, and defensible processes.
Our team supports the identification, collection, processing, and analysis of complex data sources while helping clients maintain visibility and control throughout the discovery lifecycle.
Array's technology solutions, including tools designed to improve data management and visibility, help legal teams navigate evolving discovery challenges while reducing unnecessary complexity.
How do cloud file links change email discovery?
Cloud file links change email discovery because the information referenced in an email may exist separately from the message itself. Legal teams must consider the linked file location, permissions, versions, metadata, and relationship between the email and document.
Are cloud file links considered attachments in eDiscovery?
No. Cloud file links typically reference documents stored in another system rather than attaching the file directly to the email. They require separate collection considerations.
What should legal teams confirm before collecting cloud-linked files?
Teams should confirm where files are stored, who has access, whether version history exists, how files will be preserved, and how the relationship between emails and linked documents will be maintained.
Why are cloud file links important in modern data collection?
Cloud file links are important because they represent how organizations increasingly create, share, and collaborate on information. Ignoring linked files can result in incomplete collections or lost context.
How can an eDiscovery provider help with cloud file links?
An experienced eDiscovery provider can help identify relevant data sources, develop collection strategies, preserve relationships between files and communications, and create defensible workflows for modern data environments.
As organizations continue adopting cloud collaboration platforms, email discovery is becoming more connected to the systems where information is created and stored.
Cloud file links are not simply another type of attachment. They represent a relationship between communications, documents, permissions, and collaboration history.
Legal teams that address these considerations before collection can reduce risk, improve review efficiency, and build more defensible discovery workflows.
Talk with Array about complex data collection or read our guide on modern attachments.