5 Ways to Protect Client Confidentiality in Legal Interpreting
- Shada Brea
- Jul 18, 2025
- 4 min read

In legal practice, confidentiality is non-negotiable. Whether you’re handling a criminal defense case, a family court hearing, or immigration proceedings, your client’s private information must be handled with the utmost discretion. But when your work involves non-English-speaking clients, you add another layer of complexity: interpreters and translators.
Now you’re not just trusting your staff or legal team, you’re trusting a third-party linguist to uphold your ethical standards, legal obligations, and client trust.
1. Require Signed NDAs for Every Interpreter
Why it matters: Non-disclosure agreements (NDAs) aren’t just formalities they are legally binding documents that hold interpreters accountable for the information they hear or translate. Whether it’s a deposition, medical evaluation, or jailhouse interview, interpreters are often exposed to deeply sensitive information that could damage a case or a client’s reputation if mishandled.
Our standard: At Waves Language Solutions, every interpreter and translator we work with is contractually bound by an NDA before being assigned to any legal project. We keep these documents on file and update them annually to reflect any legal changes in data protection or privacy standards.
Your benefit: If a breach were to occur (rare, but possible in less professional setups), you’ll have documentation to take legal action and more importantly, you’ll know that we took every precaution to prevent it.
2. Work Only with Court-Certified Interpreters
Why it matters: Court-certified interpreters are trained not only in legal vocabulary, but in confidentiality, impartiality, and ethics. They are held to strict standards by the certifying body (e.g., state courts, the Administrative Office of the U.S. Courts, or NAJIT). Using uncertified or ad-hoc interpreters such as bilingual family members or assistants can compromise your client’s legal protections and even violate court rules.
Our standard: Waves only assigns court-certified or vetted professional interpreters to legal cases. We verify credentials, test for up-to-date legal terminology, and ensure every linguist is familiar with conflict-of-interest protocols and confidentiality rules.
Your benefit: You don’t have to worry about interpreters discussing your client’s affairs outside the room. Certification ensures legal fluency and ethical integrity.
3. Use Secure Channels for Document Transfer
Why it matters: Imagine emailing a translated affidavit or deposition transcript to your firm only to realize it passed through unencrypted channels or was uploaded to a free file-sharing platform that tracks and stores user data. These small mistakes can violate attorney-client privilege and even breach GDPR or HIPAA laws, depending on the case type.
Our standard: We use encrypted email servers and secure client portals for all file transfers. We never share documents via unsecured third-party apps or public cloud storage. Files are archived in a secure, access-controlled system and deleted upon request or after a set retention period.
Your benefit: Every step of your case, especially digital file sharing, is protected. You’ll never have to wonder who accessed a document, where it was stored, or whether it’s floating around in cyberspace.
4. Never Allow Unauthorized Parties to Join Interpreting Sessions
Why it matters: In virtual and in-person interpreting alike, there’s a real risk of unauthorized individuals overhearing sensitive information. This happens more often than you think, especially in Zoom calls or speakerphone depositions. Sometimes it’s accidental (a family member walks in), but other times it’s due to the interpreter working in a public or shared space.
Our standard: All Waves interpreters must confirm they are in a private, secure environment before interpreting begins. If remote, they use headsets and mute functions to prevent leaks. We explicitly prohibit third-party presence unless authorized by the attorney or court. If an interpreter suspects a breach, they are trained to pause and notify the host.
Your benefit: You can be confident that what’s said between you and your client stays in that room, or that virtual space. No eavesdropping. No accidental exposure.
5. Educate and Re-Evaluate Interpreters Regularly
Why it matters: Even seasoned professionals need ongoing training to stay compliant. Laws evolve. Technology changes. New risks emerge. Interpreters who aren’t up to speed may unintentionally make mistakes that compromise confidentiality or ethical standards.
Our standard: At Waves Language Solutions, we conduct quarterly compliance reviews and offer continuing education for our linguists.
Topics include:
Recent changes in HIPAA, GDPR, and state privacy laws
Best practices for virtual interpreting confidentiality
Cultural awareness and bias mitigation
Recognizing and reporting breaches
Your benefit: You’re not just getting a linguist, you’re getting a trained, audited, and constantly improving professional. This reduces your liability and increases your peace of mind.
Why Confidentiality in Legal Interpreting Is Non-Negotiable
Legal interpreting isn’t just about translating words; it’s about ensuring your client’s constitutional rights are protected.
Without clear, confidential communication:
Immigrant clients risk deportation based on mistranslated or leaked information
Family court cases may turn against a client due to perceived dishonesty or contradiction
Criminal defendants can face life-altering sentences based on misunderstood testimony
Civil litigants can lose settlements due to misinterpretations that invalidate evidence
Confidentiality lapses, whether through carelessness or poor provider selection, they aren’t just inconvenient. They’re devastating.
Trust Waves Language Solutions to Protect What Matters
We’ve built our business on trust, professionalism, and rigorous compliance standards. Whether you’re a solo practitioner or a large law firm, we become an extension of your legal team, with all the ethical obligations that come with it.
From the moment you upload a document to the final interpretation in court, we ensure confidentiality, security, and peace of mind in every language.
Ready to work with interpreters who treat your client’s privacy like sacred ground? Contact Waves Language Solutions today.
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