Data Security in Outsourced Litigation Support: Best Practices

Protecting data is imperative for law firms, where cyberattacks aren’t just about ransom demands, but targeted digs for valuable information—up to and including national security and international trade secrets.¹

One way to reduce risk is to ensure that data is accessible only to the smallest possible number of users, including third-party vendors. Balance, however, is key—rather than attempting to in-house all support services, firms are demanding more vetting and transparency on their vendors’ data security practices. 

With the right controls and a shared-responsibility approach, outsourced litigation data security can be safe and manageable.

Why Data Security Risks Increase With Outsourcing

When a law firm doubles (or multiplies) its digital environments and employee pools, security risks naturally increase. To that end, employee vendor compliance with regulatory and cybersecurity standards becomes crucial, both online and offline.  

Here’s exactly how outsourcing increases risks.

Expanded Access Points

Like adding twice as many doors to a headquarters building, working with a vendor can introduce security risks by expanding the number of access points to your internal systems. Ultimately, more access points mean more potential entry points for hackers.

Multiple Systems and Handoffs

It’s not just about the number of individuals who handle a file. When the number of storage and work systems in which a file appears increases, it can lead to: 

• Larger attack surface and a higher number of attack vectors
• Greater vulnerability from unpatched software
• Visibility gaps and data silos
• Inconsistent security policies
• Higher storage or API connection misconfiguration risks

Every transfer event, where a document is handed off between parties, can also contribute to risk via: 

• Data loss or corruption
• MitM (man in the middle) attacks 
• Excessive read/write application permission granting
• Unauthorized access via shadow IT apps that leak credentials

Define Privacy and Security Responsibilities Early

Security ownership discussions aren’t something to throw in at the end of new vendor risk assessments. If data incidents occur, you want to have a clear understanding of who will act first and the steps they’ll take.

To avoid assumptions and pushback, discuss: 

• Roles – Which party is responsible for requisite tasks and communications?
• Accountability – Who covers each type of cost related to security incidents?
• Contractual expectations – What’s detailed in your service level agreement (SLA)?

Consider tools such as the Shared Assessments Organization’s Standardized Information Gathering (SIG) Questionnaire, Third Party Service Inherent Risk Rating (TPSIRR), and Vendor Risk Management Maturity Model (VRMMM) to set the stage for security discussions and contractual obligations.²

Best Practices for Protecting Litigation Data Privacy

Security best practices can be established with the review and adoption of guidelines, such as the NIST Cybersecurity Framework. It’s also worthwhile to work with cybersecurity specialists to vet your systems, particularly when engaging in legal process outsourcing. The basics include: 

Secure File Transfer and Storage

Before dealing with how files are accessed, transferred, and used, protect the static environment. Your file storage should come with: 

• Geographically diverse redundant datacenters 
• Multiple rings of file storage: Data originals, redactions, converted files, etc.
• Network and security operations center with 24/7 support

Additionally, keep your data safe during transfers by using closed systems whenever possible. This means: 

• No downloading and storing files on individual workstations
• File sharing should not occur via email or consumer file transfer interfaces
• No personally installed secondary apps or software that intersect with privileged data

Encryption and Access Controls

At any point in time, you should be able to audit all access and activities tied to any individual file at an individual level—exactly who viewed, edited, and transmitted file versions—and keep your files safe from prying eyes. This requires: 

• Single-sign-on systems access to track individual users
• Use of multi-factor authentication (MFA)
• End-to-end encryption of all transmitted files

Role-Based Permissions

If we pivot from focusing on the file to focusing on the user, best practices for file security require minimizing file access. To that end, prioritize these steps: 

• Enforce least privilege, granting access only to absolutely necessary data and systems 
• Retain strict control of admin-level access, generally limited to in-house use
• Immediately revoke access to data at project or contract endings

Evaluate Vendor Security Measures

When vetting vendors, it’s important to request full and detailed information on their security measures before signing any contracts. 

Ask potential or current vendors up for re-evaluation to share their internal security policy documentation. While they may not hand over a physical copy, most vendors are willing to share documentation as a view-only experience during a meeting. 

Certifications and Audits

A promise of security protocol faithfulness isn’t enough. When you vet and review vendors, ask about their specific adoption and adherence to guidelines and frameworks such as: 

• NIST Cybersecurity Framework 
• SOC 2 Type 2 security compliance 
• HIPAA/HITECH compliance for patient health data
• ISO/IEC 27001
• GDPR for EU citizens
• FedRAMP for federal data

For the standards they adhere to, find out if they’re independently audited, and ask to receive the following evidence (typically under an NDA) for each:

• Audit executive summary 
• Attestation of compliance (AOC)
• SOC and/or redacted reports
• Gap letter for any reports older than a few months

Employee Training and Access Governance

A chain is as strong as its weakest link. How do your vendors ensure their staff adhere to security protocols? Inquire about: 

• Online and offline governance measures over systems access
• New employee onboarding, initial training, testing, and oversight
• Employee training updates 
• Error and bad action repercussions

Monitor and Audit Ongoing Security

While an initial security deep-dive for any new vendor makes sense, it’s not the endgame. Over time, you want to monitor for:

• Changes within current security frameworks
• New frameworks to be considered or integrated
• Vendor staff turnover and attrition that impacts security training and adherence

Regular Reviews and Assessments

Of course, you don’t have time to review and approve every action your vendor takes. So, how can you remain confident in their security quality over time? Plan to: 

• Conduct realtime continuous monitoring of security and access activity
• Require updates on independent audit results and credentials
• Establish a process for identifying interstate and international jurisdictional regulations

Logging and Monitoring

All this data doesn’t provide much benefit if it’s only studied after a problem occurs. Logging is the process of turning raw data into actionable insights, established to:

• Track suspicious patterns of failed or odd access attempts
• Assemble a detailed timeline and trail of evidence for security incidents
• Link actions to systems and users
• Serve as an audit trail in compliance with regulatory mandates
• Pinpoint exact causation that helps determine how to fix open issues

Monitoring tools that provide access and interpretation of logging data and reports is critical, offering: 

• Realtime analysis, insights, and alerts
• Clarity on identifying attacks vs. system glitches
• Insight into privacy and data security issues
• The ability to intervene as quickly as possible 

Prepare for Security Incidents

Planning for success includes preparing for challenges along the way, as recent studies actually suggest an inverse relationship between security consciousness and data leaks: 

• According to our 2026 litigation support trends survey, 70% of respondents consider data privacy policies essential in vetting tech vendors, and 72% have a formal data security policy in place.
  
• Multiple 2025 surveys found that approximately one in five responding firms’ data had undergone attacks during the preceding 12-month period.³ 

Establishing and adhering to stringent security protocols is critical to reduce your risk, but it doesn’t guarantee 100% safety from human error and increasingly sophisticated cybercriminals. As such, incident response planning and remediation protocols are just as crucial for addressing a potential data breach.

Incident Response Planning

An emergency is no time to figure out what to do in an emergency. Make sure to establish a clear incident response (IR) plan ahead of time that covers: 

• In-house and third-party roles and responsibilities
• Incident and severity classification that guides responding actions
• Preservation of all documentation and actions to aid investigation and legal defense
• Post-mortem analysis to understand causation and improve security defenses

IT tactics that occur prior to the post-mortem typically include steps to: 

• Isolate or contain the system(s) and data involved to reduce harm
• Recover, duplicate, lock down, or otherwise protect against data loss
• Eradicate the root cause of a problem
• Restore the systems and operational workflows

Communication and Remediation Protocols

A key part of your IR plan is communications. This includes: 

• Internal stakeholders
• Vendors and other third-party communications
• Law enforcement involvement
• Templated client notifications

The what, when, and how of client communications are, to a large degree, informed by a range of legal, ethical, and practical frameworks. Depending on the data at risk, these may include: 

• HIPAA (Health Insurance Portability and Accountability Act) Privacy Rule
• Federal Rules of Civil Procedure Rule 5.2 or Criminal Procedure Rule 49.1
• GDPR (General Data Protection Regulation) from the European Union (EU)
• State privacy laws, such as the CCPA (California Consumer Privacy Act) 

Partner with Security-Conscious Vendors to Protect Your Data, Reputation, and Peace of Mind

Outsourcing and security aren’t mutually exclusive—rather, they can coexist while reinforcing high security standards. To keep your data protected, communicate with vendors transparently, vet them carefully, and establish ongoing monitoring rather than one-time checks. 

With a clear understanding of shared responsibility between firms and vendors and an emphasis on trust, transparency, and accountability, outsourcing litigation support can be a secure and manageable way to increase your firm’s efficiency and success.

At U.S. Legal Support, we understand the need to protect data at every stage of the case lifecycle. Find out more about our comprehensive litigation support services or download our cybersecurity checklist to learn how we can help you drive timely and successful case outcomes. 

Sources: 

1. The Record. Major US law firm says hackers broke into attorneys’ emails accounts. https://therecord.media/us-law-firm-hackers-breached-email
2. Shared Assessments. Types of Vendor Risk and How to Mitigate Them. https://sharedassessments.org/blog/types-of-vendor-risk-and-mitigation/
3. Law.com. One in 5 US Law Firms Hit by Cyberattacks in the Past 12 Months, Study Finds. https://www.law.com/international-edition/2025/07/01/one-in-5-us-law-firms-hit-by-cyberattacks-in-the-past-12-months-study-finds/

Julie Feller

Julie Feller is the Vice President of Marketing at U.S. Legal Support where she leads innovative marketing initiatives. With a proven track record in the legal industry, Juie previously served at Abacus Data Systems (now Caret Legal) where she played a pivotal role in providing cutting-edge technology platforms and services to legal professionals nationwide.