Law Firm Cybersecurity: Controls and Incident Duties

Assess Cyber Risks Across the Practice

Map where confidential matter information sits and who can reach it. Include bank statements, identification documents, trust records, email attachments, downloaded bundles and copies held by suppliers. Record each system’s administrator and the person responsible for the client matter.

Use the following hypothetical assessment to turn exposures into assigned work. Record the finding, owner, control and next test in the firm’s risk register.

Scenario	Information or work at risk	Accountable owner	Control and observable result
A solicitor enters credentials on a phishing page	Mailbox correspondence and accessible client files	IT lead, with the matter partner assessing exposure	Multifactor authentication and sign-in monitoring operate; suspicious access reaches the responder
An email changes a settlement account	Client or trust funds	Authorised payment approver	A separate call to a verified contact confirms the instruction before approval
Matter files cannot be opened before a hearing	Exhibits, instructions and preparation work	Continuity lead and matter partner	An authorised user can open a restored bundle in the recovery environment

The Australian Signals Directorate’s Australian Cyber Security Centre recommends multifactor authentication, software updates and backups as starting measures in its small business cybersecurity guide. Build on those measures according to the practice’s systems and exposures. A checklist entry without a test result leaves the principal unable to judge whether the control works.

Protect Client Matters and Assign Incident Responsibility

Give the matter partner responsibility for deciding who needs each client file. The IT administrator implements that access and records changes. Onboarding needs a named approver, a role-based permission set and multifactor authentication before live matter access begins.

Departures need a timed handover covering supplier accounts as well as internal systems. Assign responsibility for disabling sign-in, ending active sessions and removing shared access. Record the status of retained copies and devices. The payment approver separately owns verification of new or changed client bank details.

Confidentiality is a professional duty. For NSW practitioners, the Law Society and Lawcover guidance identifies rule 9 and its permitted-disclosure exceptions. Apply the conduct rules governing your practice and assess any additional privacy obligations. The technical controls below are practical safeguards, not a universal statutory checklist.

Follow a Statement Bundle Outside the Firm

Before sending statements for outside analysis, the matter partner approves the purpose, scope and recipient. Record the agreed transfer method, permitted users, storage arrangements and incident contact. Obtain written terms for retention, return and disposal of copies, including any subcontractor access.

For example, FinTrace takes over hours of monotonous statement review and returns a searchable ledger and source-backed findings report. Treat the source PDFs and returned analysis as confidential matter records. The firm’s supplier review establishes the handling arrangements for that engagement.

Send only the approved bundle through the agreed channel. Record what was sent and confirm receipt with the authorised recipient. On return, store the ledger and report in the restricted matter folder. Remove temporary sharing permissions when the work ends, while preserving records required by the firm’s retention policy or a legal hold.

Apply Identity, Device and Email Controls

Prioritise controls that stop an ordinary compromised account from reaching the whole practice. Require multifactor authentication for email, remote access and administration. Give users only the permissions their work needs, and keep administrative access separate from everyday work.

The IT lead needs an inventory of supported computers and mobiles. Record patching status and endpoint protection for each device. Set requirements for screen locking, encryption and approved storage on devices that hold downloaded records. A cloud-based endpoint security console helps only when the relevant devices report to it and someone acts on alerts.

For email and cloud collaboration security, assign alerts to a responder who can investigate them. Use the following checks across solicitors, administrators and external users.

Signal or test	Evidence to retain	Response owner and expected action
Unexpected mailbox forwarding	Rule details, sign-in events and affected mailbox	Email administrator investigates the rule and associated access
A compromised user identity	Sign-in history, sessions and access changes	Authorised IT responder contains access and preserves the event record
An external sharing link	Recipient, permission, expiry and file-access events where available	Matter owner confirms authority; administrator removes unauthorised access
A departing user is disabled	Disablement time, session status and access-test result	IT administrator confirms fresh sign-in and revoked shared access fail
A lost mobile or downloaded bundle	Device identity, last contact and local-copy inventory	Device administrator assesses exposure and obtains authority for containment

Disabling a cloud account does not retrieve a file already downloaded to another device. Include retained copies in the response assessment. Keep remote wiping or other destructive actions with the authorised incident team so evidence and matter records are considered first.

Evaluate Cloud Email Protection Against the Actual Service

ESET Cloud Office Security’s official overview describes spam filtering, antimalware scanning and anti-phishing protection. It identifies coverage for Microsoft 365 services and Google Workspace email and files. That documented scope makes it a candidate for a practice assessing cloud email security and collaboration-file scanning.

In a hypothetical practice using Exchange Online and shared cloud folders, compare the documented protection with the actual mailboxes and stores holding matter copies. The IT lead records which services are connected and who receives detections. Assess forwarding-rule investigation, external sharing permissions and device protection separately from the documented scanning functions. An email-security product name does not establish that those other controls operate.

For changed payment instructions, the payment approver calls a contact using independently verified details. Keep the verification record with the payment approval. The ACSC business email compromise guidance explains why a familiar sender address cannot establish that a request is genuine.

Include Cloud Print Queues

A cloud print security review follows an exhibit from submission to collection and disposal. Identify copies held in the cloud queue, local spooler and printer storage. Record who can administer the queue and who can release a job. Confirm the configured retention and deletion behaviour for the service and device in use.

Where secure release is available, test it with a non-confidential sample. The sample must remain unprinted until the authorised user releases it. Check abandoned jobs and stored exhibits under the agreed disposal process. A printer that releases confidential exhibits immediately needs a different control from a printer that holds them for collection.

Test Backup Recovery and Business Continuity

Test whether the practice can restore usable matter records with the permissions and applications needed to read them. A successful backup job does not demonstrate that result. The ACSC system-management guidance calls for coordinated restoration testing as part of disaster recovery exercises.

1. The continuity lead selects a representative matter bundle and agrees the acceptable recovery time and data-loss period with the matter partner.
2. Authorised IT staff restore the selected records in an isolated recovery environment, without overwriting the live matter.
3. A permitted user opens the PDFs and associated files, checks the bundle against its inventory and confirms the required access restrictions.
4. The continuity lead records elapsed recovery time, missing records and failed permissions, then assigns repairs and a repeat test.

Keep backup administration separate from ordinary user access. Include cloud records and required settings in the recovery scope. A restored file store with no working identity service can still leave solicitors unable to prepare a hearing.

During an outage, the matter partner identifies imminent hearings, filing obligations and urgent client decisions. Use approved recovery access and restricted copies for that work. Keep a record of temporary copies for later reconciliation. Avoid personal email or open sharing links as shortcuts around a failed system.

Respond to an Incident and Preserve the Record

Escalate a suspected cyber incident immediately through the practice’s agreed contact path. The incident lead coordinates the response, qualified IT staff contain technical access and the matter partner identifies affected clients and work. Keep a chronology recording each action, decision, person and time.

The OAIC response guidance sets out containment, assessment, notification and review. These activities can overlap. Preserve evidence while limiting further disclosure, and avoid routine deletion or rebuilding that could destroy the incident record.

For suspicious forwarding, preserve the rule and relevant mailbox events before authorised staff change access. For changed bank details, pause the payment and verify through a separate trusted channel. If funds have moved, contact the bank promptly through its verified fraud channel. For locked files, notify the incident team and let authorised technical staff decide isolation and recovery actions.

Consider a hypothetical cloud account compromise. The administrator preserves available sign-in, file-access and sharing logs, then records session revocation and permission changes. The matter partner maps accessible folders and correspondence to affected matters. Retain supplier communications and distinguish confirmed access from information still being assessed.

The legal lead assesses notification duties under the rules applying to the practice, alongside insurer terms and any trust-money reporting requirements. Federal Notifiable Data Breaches duties depend on coverage and the eligible-breach criteria. A suspected eligible breach requires assessment, and covered entities must take reasonable steps to complete it within 30 days. Record the legal basis for each decision. Use the separate notifiable data breach assessment for eligibility and notification details.

Finish the exercise by having the incident lead account for every affected matter and every outstanding action. Confirm that authorised users can resume work, temporary permissions are resolved and the evidence record remains intact. Give unresolved exposure and notification decisions a named owner before closing the incident.