What Does a Strong Law Firm IT Environment Look Like?
Law firms have technology responsibilities that extend far beyond keeping computers running.
Attorneys and staff may be accessing confidential client communications, case files, financial information, court documents, discovery materials, and other sensitive information throughout the workday. That information may move between email, Microsoft 365, document-management systems, case-management applications, employee devices, cloud platforms, and third-party services.
At the same time, attorneys increasingly need access outside the traditional office, whether they’re working from home, meeting with a client, traveling, or appearing in court. That creates a complicated IT environment where security, accessibility, reliability, and confidentiality all have to work together.
A law firm’s IT strategy should therefore answer several important questions:
- Can attorneys securely access client information when they need it?
- Who has access to each client’s files and matters?
- What happens to access when an attorney or employee leaves?
- Can the firm recover files if they’re deleted, encrypted, or unavailable?
- Could a compromised email account expose client communications?
- Can the firm continue operating during an IT outage?
- Are employees able to recognize attempts to steal credentials or redirect payments?
This law firm IT checklist can help identify areas worth reviewing.

1. Protect Confidential Client and Matter Information
Protecting client information should be at the center of a law firm’s technology environment.
Client data may exist in more places than the firm realizes, including:
- Email inboxes
- Microsoft 365
- SharePoint and OneDrive
- Case-management software
- Document-management systems
- Local computers
- Servers
- Cloud storage
- Mobile devices
- Scanned documents
- Third-party applications
The first step is understanding where sensitive information exists and who can access it.
Law firms should establish controls around:
- User permissions
- File and folder access
- External sharing
- Administrative privileges
- Device security
- Data encryption where appropriate
- Former employee access
- Third-party access
An employee shouldn’t automatically have access to every client or matter simply because they work for the firm. Access should be based on what each person actually needs to perform their role.
2. Secure Attorney and Staff Email Accounts
Email deserves particular attention in a legal environment.
Attorneys may use email to exchange confidential information, receive documents, communicate with clients, coordinate matters, and discuss financial transactions.
That makes a compromised mailbox particularly damaging.
Law firms should have protections in place for:
- Phishing
- Malicious attachments
- Suspicious links
- Spoofed domains
- Account takeover attempts
- Unauthorized forwarding rules
- Suspicious login activity
- Business email compromise
Email security should also be combined with multi-factor authentication, because filtering technology cannot prevent every employee from entering credentials into a convincing phishing page.
3. Protect Against Payment and Wire Fraud
Law firms may handle or communicate about settlements, retainers, invoices, trust accounts, real estate transactions, or other financial matters.
Attackers can exploit those communications through business email compromise (BEC).
For example, an attacker who compromises or impersonates a trusted email account may attempt to send fraudulent payment instructions or convince an employee or client that banking information has changed.
Firms should establish verification procedures for requests involving:
- Wire instructions
- Changes to banking details
- Large payments
- Trust account information
- Unexpected invoices
- Requests for sensitive financial information
Employees shouldn’t rely solely on the email requesting the transaction to verify that the request is legitimate. Independent verification procedures can add an important layer of protection against impersonation and account-compromise attacks.
4. Require MFA for Critical Legal Systems
A stolen password shouldn’t automatically provide access to a law firm’s email or client information.
Multi-factor authentication adds another verification requirement when someone attempts to sign in.
Law firms should consider MFA particularly important for:
- Microsoft 365
- Case-management platforms
- Document-management systems
- Cloud storage
- Remote access
- Financial systems
- Administrative accounts
- Other systems containing confidential information
Administrative accounts deserve especially strong protection because they may have the ability to modify users, permissions, security settings, and data.
5. Securely Manage Passwords and Shared Firm Credentials
Law firms frequently have accounts that don’t belong neatly to one individual.
The firm might have shared credentials for vendor portals, research tools, administrative systems, social accounts, equipment, or other business applications.
Those passwords shouldn’t live in:
- Excel spreadsheets
- Word documents
- Sticky notes
- Shared email threads
- Teams/chat messages
- Employee notebooks
A business password manager can provide a more controlled way to store and share credentials.
This becomes particularly valuable when an employee leaves the firm because administrators can review and revoke access instead of trying to determine which passwords the former employee knew.
File permissions deserve special attention in a law firm.
A firm’s file structure may contain information related to numerous clients, matters, attorneys, practice areas, and administrative departments.
Permissions should prevent employees from accessing information they don’t need simply because everything is stored in the same system.
Firms should periodically review:
- Matter-folder permissions
- SharePoint permissions
- Shared drives
- External sharing links
- Guest users
- Former employee accounts
- Administrative access
- Third-party access
- Public or organization-wide sharing settings
This becomes particularly important for sensitive matters where access should be restricted to a specific team.
7. Have a Secure Way to Share Documents With Clients
Email attachments aren’t always the best method for exchanging sensitive documents.
Depending on the information involved and the systems available to the firm, secure portals, controlled SharePoint access, or other approved file-sharing methods may provide greater control over how documents are accessed and shared.
The firm should know:
- Who can create external sharing links
- Whether links expire
- Whether recipients must authenticate
- Whether files can be downloaded
- Who currently has external access
- How access is revoked when no longer required
Attorneys and staff should also know which file-sharing methods the firm approves so they don’t resort to personal cloud storage or other unapproved services when they need to send a large file.
8. Secure Microsoft 365 for Legal Work
For firms using Outlook, Teams, OneDrive, and SharePoint, Microsoft 365 can contain a significant amount of sensitive firm information.
The environment should be actively managed rather than treated as a collection of employee email accounts.
Areas to review include:
- MFA
- Administrative accounts
- User permissions
- External sharing
- SharePoint access
- OneDrive access
- Suspicious login monitoring
- Email security
- Employee account creation
- Employee account removal
- Data retention and recovery requirements
- Security policies
For example, an attorney leaving the firm shouldn’t result in the immediate loss of business records associated with their Microsoft 365 account.
The firm should have a defined process for preserving required business information, transferring appropriate access, and disabling the former employee’s ability to sign in.
9. Protect Attorneys Working Outside the Office
Lawyers don’t always work from their desks.
An attorney may need access to documents or email while:
- Working from home
- Traveling
- Attending court
- Meeting with clients
- Working from another firm location
Remote access should therefore be part of the firm’s security strategy.
Consider:
- Company-managed laptops
- Device encryption
- MFA
- Endpoint protection
- Secure remote access
- Screen-lock policies
- Lost-device procedures
- Public Wi-Fi practices
- Mobile-device security
Employees should know what to do immediately if a device containing or providing access to firm information is lost or stolen.
10. Secure the Law Firm's Office Network
Your network connects attorneys and staff to virtually everything else they use.
A legal office may have employee computers, printers, conference-room technology, wireless devices, servers, phones, security equipment, and guest devices all requiring connectivity.
The firm’s network should include appropriate controls for:
- Firewalls
- Business Wi-Fi
- Guest Wi-Fi
- Network segmentation
- Switches and routers
- Network monitoring
- Firmware updates
- Remote connectivity
- Multiple office locations
Guest devices should not simply be placed on the same unrestricted network used to access confidential firm systems.
If the firm has multiple offices, connectivity between those locations should also be designed and secured appropriately.
11. Back Up Critical Legal Data
Imagine discovering that an entire matter folder is missing the morning before an important deadline.
Or that ransomware has encrypted files attorneys need to work.
A law firm’s backup strategy should account for the information necessary to continue serving clients, which could include:
- Client and matter files
- Document-management data
- Microsoft 365 data
- SharePoint and OneDrive
- File servers
- Business databases
- Accounting or financial data
- Other business-critical applications
The firm should know what is backed up, how frequently it is backed up, where copies are stored, and how information would actually be restored.
Backups should also be monitored and recovery procedures tested. Simply seeing that a backup job ran successfully isn’t the same as knowing the firm can recover what it needs.
12. Have a Disaster Recovery Plan Before a Deadline Is at Risk
Downtime has a particularly clear consequence in legal work: attorneys and staff may be unable to access the information they need to work on active matters.
A disaster recovery plan should establish what happens if important technology becomes unavailable.
Your firm should know:
- Which systems must be restored first
- How attorneys will access critical information
- How employees will communicate
- Who contacts the IT provider
- Where backups are located
- How systems will be restored
- How long recovery is expected to take
- How much recent data could potentially be lost
- What happens if the physical office can’t be used
Court deadlines, client commitments, closings, filings, and scheduled proceedings don’t necessarily disappear because your server or internet connection is down. That’s why recovery planning should happen before an outage.
13. Create a Process for Attorneys and Employees Leaving the Firm
Offboarding is especially important when an employee has had access to confidential client information.
When an attorney, paralegal, assistant, or other employee leaves, the firm should have a coordinated process for technology access.
That may include:
- Disabling the employee’s account
- Revoking active sessions
- Recovering laptops and mobile devices
- Removing VPN or remote access
- Removing access to case-management systems
- Removing access to client files
- Reviewing shared passwords
- Removing access to third-party applications
- Preserving required email and files
- Transferring appropriate business information
- Reviewing administrative privileges
Don’t wait until after someone’s last day to figure out which systems they can access. The same principle applies to onboarding: new employees should receive the access they need without automatically being given permissions they don’t.
14. Train Employees Around Threats That Target Legal Work
Security awareness training should reflect the situations employees actually encounter.
For a law firm, training should help attorneys and staff recognize things like:
- Fake Microsoft 365 login pages
- Impersonated client emails
- Fraudulent payment instructions
- Unexpected document-sharing invitations
- Malicious attachments disguised as legal documents
- Password-reset scams
- Executive or partner impersonation
- Suspicious requests for confidential information
Employees should also understand how to report something suspicious rather than simply deleting it and moving on. Regular security awareness training can help employees recognize these threats before they lead to a larger incident.
15. Review the Security of Third-Party Legal Technology
Your internal systems aren’t the only technology handling firm information.
Legal practices may depend on outside vendors for case management, document management, e-signatures, billing, research, file sharing, cloud storage, and other functions.
Before providing a third party with access to sensitive information, firms should understand issues such as:
- What data the vendor can access
- How accounts are authenticated
- Whether MFA is available
- How user access is removed
- What sharing controls exist
- How data can be exported or recovered
- What happens when the firm stops using the service
- What security documentation the vendor provides
Adding a new cloud application shouldn’t happen simply because one employee found a tool they like. Firms should have a process for reviewing technology before sensitive information is placed into it.
16. Keep Technology Updated and Supported
Older technology can create both operational and security problems.
A law firm should keep track of:
- Workstation age
- Operating system support
- Server age
- Firewall lifecycle
- Network equipment
- Software versions
- Warranty expiration
- Storage capacity
- Application compatibility
Waiting until something fails can be particularly disruptive when attorneys are working against deadlines.
Technology lifecycle planning allows the firm to replace aging systems deliberately rather than during an emergency.
17. Periodically Review the Firm's Cybersecurity Risks
A law firm’s technology environment doesn’t stay the same.
New employees join. Attorneys leave. New applications are introduced. Permissions change. Remote-work arrangements evolve. New client data enters the environment. A periodic cyber risk assessment can help identify weaknesses that have developed over time.
For a legal practice, that review may include:
- Client data access
- Email security
- MFA coverage
- Administrative accounts
- Microsoft 365 configuration
- Endpoint security
- Network security
- Remote access
- Backup and recovery
- Employee practices
- Third-party access
- Former employee accounts
The objective is to find weaknesses before an attacker or an outage does.
Law Firm IT Checklist
Client & Matter Data
- ☐ We know where confidential client information is stored.
- ☐ Access to client and matter files is appropriately restricted.
- ☐ External file sharing is controlled.
- ☐ Former employees cannot access client information.
Accounts & Email
- ☐ MFA protects critical accounts.
- ☐ Employees use unique passwords.
- ☐ Shared credentials are securely managed.
- ☐ Email security protections are in place.
- ☐ Payment changes require independent verification.
Devices & Remote Work
- ☐ Firm devices have endpoint protection.
- ☐ Laptops containing firm information are appropriately secured.
- ☐ Attorneys have a secure method for remote access.
- ☐ A process exists for lost or stolen devices.
Microsoft 365 & Applications
- ☐ Microsoft 365 permissions are reviewed.
- ☐ Administrative privileges are limited.
- ☐ New applications are reviewed before use.
- ☐ Departing employees are properly offboarded.
Network & Infrastructure
- ☐ Firewalls and network equipment are managed.
- ☐ Employee and guest Wi-Fi are appropriately separated.
- ☐ Network equipment receives updates.
- ☐ Connectivity is monitored.
Backup & Recovery
- ☐ Critical legal data is backed up.
- ☐ Microsoft 365/cloud data requirements have been considered.
- ☐ Backups are monitored.
- ☐ Recovery is tested.
- ☐ A documented disaster recovery plan exists.
Employees & IT Management
- ☐ Employees receive cybersecurity training.
- ☐ Onboarding and offboarding procedures are documented.
- ☐ Aging technology is tracked.
- ☐ Cybersecurity risks are periodically reassessed.
- ☐ Employees know who to contact when an IT or security issue occurs.
Technology Should Support Legal Work, Not Create Another Risk
Law firms need technology that allows attorneys and staff to access information efficiently while maintaining appropriate protections around client data, communications, accounts, and systems.
That requires more than installing antivirus software or having someone available when a computer breaks.
A well-managed legal IT environment brings together user support, cybersecurity, Microsoft 365, network management, data backup, access controls, employee security, disaster recovery, and long-term technology planning.
CATS Technology provides managed IT services for law firms throughout New Jersey, New York, and Pennsylvania, helping legal practices manage and secure the technology their attorneys and staff rely on every day.


