Vetting an interpreter on confidentiality for sensitive conversations

Many people booking interpreters for sensitive conversations assume confidentiality is automatic. It isn't. While professional interpreters understand discretion, the difference between an interpreter who treats client information as routine and one with formal confidentiality protocols matters enormously—especially in legal, medical, financial or HR contexts. The mistake is not asking how they handle information until after they're hired.

An interpreter's attitude toward confidentiality should be verifiable before you commit. This means checking whether they've signed formal agreements with previous clients, whether they understand the scope of what "confidential" means in your setting, and whether they have systems in place to prevent accidental disclosure.

Registers and professional membership to check

Start by confirming they belong to a relevant professional body. Ask which interpreter association or registry they're registered with—South Africa has several, and membership typically includes ethics codes that bind members to confidentiality. Request their membership number and verify it independently on the organisation's website. Professional registers exist partly to give you recourse if confidentiality is breached.

Beyond registration, ask whether they hold any specialist credentials. A legal interpreter might be accredited by the law society or have completed legal interpreting training that includes confidentiality modules. A medical interpreter may have certification from a healthcare body. These qualifications often require formal training in handling sensitive information, not just language fluency.

Ask directly: "Do you have a written confidentiality agreement or non-disclosure agreement (NDA) you can sign before the work begins?" A serious professional working in sensitive fields will have a template ready. If they seem reluctant or unclear, that's a warning sign. The agreement should specify what happens to notes, recordings, or any written material they create during interpretation.

What to verify in conversation and via references

When you speak to them, ask how they've handled confidentiality in similar work. Listen for specifics: "I've signed NDAs for 15 legal cases" is better than "I'm always discreet." Ask what they do with any notes or recordings after the session—do they delete them, store them securely, or return them to you? Ask whether they've ever had a client request that they sign a stricter confidentiality clause than usual, and whether they agreed.

Call at least two previous clients in a similar field—don't accept references outside your industry, because confidentiality practices in HR settings differ from medical ones. Ask each reference: "Did they explain their confidentiality process before the work?" and "Would you trust them with information you wouldn't want public?" A good reference will recall the agreement or process without prompting.

Also confirm they understand your confidentiality obligations. If you're in a regulated profession—law, medicine, psychology—the interpreter is part of your privilege chain. They need to know this. Ask: "Do you understand that information shared in this session is legally privileged and cannot be disclosed without consent?" Their answer tells you whether they grasp the stakes.

One practical detail: ask how they secure their workspace during interpretation. If it's remote, do they use a private room? If in-person, can they work without being overheard? Confidentiality isn't just about their ethics; it's about the environment where the work happens.

Finally, ask whether they have professional indemnity insurance. This doesn't guarantee confidentiality, but it shows they've been vetted by an insurer and have financial liability if they fail to protect information.

Finding a verified interpreter with transparent confidentiality practices takes a little extra time upfront, but it removes the risk of booking someone whose standards don't match your needs. Strove's interpreter network includes profiles where professionals detail their confidentiality policies and past verification, so you can compare what they've committed to before you book.