Learning Area | Interprefy

Assessing Customer Security, Privacy & Service Level Agreement (SLA) Promises

Written by Dayana Abuin Rios | August 11, 2026

Every interpretation vendor's website claims to take security seriously. Most mention encryption somewhere on the homepage, and a fair number display a certification badge near the footer. For a buyer comparing providers, these claims tend to blur together, and it becomes easy to treat them as background noise rather than as evidence worth examining.

That's a mistake once real content is involved. A multilingual board meeting, a healthcare consultation, or a confidential internal town hall carries information that shouldn't be handled by a vendor whose security posture is more marketing copy than substance. The same applies to service level agreements: a promise of "reliable support" means very little without a defined response time attached to it.

This post sets out what to actually check when you're evaluating a multilingual solution provider's security, privacy and SLA commitments, so that a decision can be made on evidence rather than on the confidence of the sales page.

Why Vendor Promises Deserve Scrutiny

Interpretation and translation platforms sit in the middle of some of the most sensitive conversations an organisation has. They process live audio, sometimes video, and often transcripts, frequently involving personal data, commercially sensitive material, or content covered by sector-specific regulation. A vendor handling that content is, in effect, an extension of your own data governance, and it should be assessed with the same rigour you'd apply to any processor touching regulated information.

Yet procurement conversations with multilingual solution providers often centre on language coverage, interpreter quality and price, with security and compliance treated as a formality to confirm at the end. Reversing that order, and asking the harder questions early, tends to save time later and avoids discovering gaps after a contract is signed.

Security Claims: What to Ask For

Generic reassurance ("your data is safe with us") isn't evidence. Specific, verifiable detail is. When a vendor states it takes security seriously, ask for the documentation behind that statement, including current certifications such as ISO 27001, evidence of regular penetration testing and independent audits, and clear detail on encryption standards used both in transit and at rest.

It's also worth asking where data is physically stored and processed, since data residency affects which regulatory regime applies and how quickly data can be deleted on request. A vendor that can point to a named standard, a recent audit date and a specific encryption protocol is operating differently to one that offers only a general assurance.

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Reading the Fine Print

 Vague language is often the clearest signal of all. Claims such as “enterprise-grade security” and “bank-level encryption” should be accompanied by specific technical details, such as AES-256-GCM, TLS 1.2 or higher, and the name of a certifying body. These are concrete claims that can be independently verified. 

Privacy Compliance: Beyond a Checkbox

Compliance frameworks such as the GDPR set out clear roles for organisations handling personal data, and it matters whether your vendor is acting as a data processor or a data controller for the sessions it supports. That distinction affects who is responsible for what, and it should be stated plainly in the contract rather than left implied.

Beyond the legal role, the practical questions matter just as much. How long is session data retained after an event ends? Can a customer request deletion, and how quickly is that honoured? Are any third-party sub-processors involved in handling audio or transcripts, and if so, are they named and vetted? A provider with a mature privacy programme will have straightforward answers to each of these, generally documented in a privacy policy that goes beyond boilerplate.

Understanding SLA Promises

An SLA is only useful if it's specific enough to be enforced. A commitment to "high availability" is not the same as a commitment to 99.9% uptime, measured monthly, with defined remedies if that threshold isn't met. The same logic applies to support: "responsive support" should translate into a stated response time, ideally tiered by the severity of the issue raised.

For live interpretation specifically, SLAs should also address what happens when something goes wrong during an event itself, such as an interpreter connection dropping or audio quality degrading mid-session. A vendor that has thought through failover and backup interpreter provisions will have a clear, pre-written answer to this. One that hasn't will improvise an answer on the spot, which is itself informative.

A Practical Evaluation Framework

Before signing, it's worth requesting evidence rather than relying on statements made during a sales call. A short, useful request list to send a shortlisted vendor includes the following: a current copy of their ISO 27001 or equivalent certificate, a summary of their most recent penetration test findings, their data retention and deletion policy in writing, and a copy of the actual SLA document with uptime, response time and remedy clauses spelled out.

Vendors confident in their own posture will supply this without friction. 

What to Look For Going Forward

Security, privacy and SLA commitments aren't the most exciting part of choosing a language services partner, but they're the part that determines what happens when something goes wrong, whether that's a data request, a service outage, or a session involving especially sensitive content. Treating these commitments as verifiable claims, rather than as reassurance, puts the decision on firmer ground.

To see how Interprefy documents its own security certifications and SLA commitments, explore our platform.