A recorded interview can contain source material, personal data, commercial plans or sensitive client conversations. Before it becomes a transcript, it has to leave your device and be processed somewhere else. That is why the question, “are uploaded files encrypted?”, deserves a more useful answer than a simple yes or no.
Encryption is a core safeguard, but it is only one part of handling uploaded audio and video responsibly. For professionals choosing a transcription platform, the practical question is whether the provider protects the file throughout its working life: during upload, while stored, during processing, and when people access or delete it.
Are uploaded files encrypted during transfer?
When you upload a recording through a browser, the first control to look for is encryption in transit. This protects data as it travels between your computer and the service. In practice, this is usually provided through HTTPS and TLS, the same family of protections used for secure online banking, business software and web applications.
Without encryption in transit, someone able to intercept network traffic could potentially read or copy the file. This risk is particularly relevant when working from public Wi-Fi, shared networks or locations outside your usual office environment.
A secure browser connection is a useful starting point, but it is not proof that every part of a provider’s data handling is secure. It tells you how information travels to the platform. You should also understand what happens after the upload completes.
Encryption at rest matters just as much
Encryption at rest refers to protection applied when files, transcripts and related data are stored on servers or cloud infrastructure. If storage systems were accessed without permission, encryption helps prevent the underlying content from being read without the necessary keys and controls.
For transcription work, this should apply to more than the original recording. A generated transcript can be equally sensitive, and sometimes more easily searchable and shareable than the audio itself. Bookmarks, summaries, speaker labels and exported documents may also carry confidential information.
Ask whether encryption at rest covers uploaded files and transcripts, and whether backups are protected too. Backup arrangements matter because deleting a file from the visible workspace does not always mean it immediately disappears from every protected copy used for disaster recovery.
The provider should be able to explain this in plain language. If security documentation only says data is “secure” without describing encryption, storage and retention, treat that as a prompt for further questions rather than a completed answer.
Encryption is not the same as access control
A file can be encrypted in storage but still be exposed through poor account security or overly broad permissions. For example, an unauthorised person may gain access through a compromised password, a shared login or an account with more permissions than it needs.
That is why strong platforms combine encryption with account-level controls. Two-factor authentication adds a second check beyond a password. Role-based workspace access can limit who can view, edit, export or delete material. Session management, audit records and sensible internal access procedures reduce the chance that sensitive content is available to the wrong person.
For a sole consultant, the priority may be protecting one account and a set of client recordings. For a research team or newsroom, it may also mean controlling which colleagues can access a project, and ensuring a departing contractor cannot retain access to old interviews.
What happens while a file is being transcribed?
Uploaded recordings are not simply stored. They are processed to identify speech, create timestamps, distinguish speakers where required and generate the transcript. This stage introduces additional questions: where is processing performed, who can access the content, and is the content used for any purpose beyond providing the service?
Location matters for organisations with data protection obligations. A UK business may need to know whether audio is processed within the UK, the EU or elsewhere, and whether transfers to another jurisdiction take place. The right arrangement depends on your organisation, your contracts and the type of information involved, but the provider should make its processing geography clear.
Use of customer data for AI training is another separate issue. Encryption does not answer it. A platform may protect files technically while reserving rights to use content to improve models. If your work involves confidential interviews, internal meetings, patient-adjacent discussions or unreleased material, look for an explicit policy stating whether customer content is used to train AI systems.
Endaxi Scribe is designed around this distinction: customer content is not used for AI model training, with EU-based AI processing and no US data transfers. Those commitments sit alongside technical safeguards, rather than replacing them.
Retention is a security control, not an afterthought
The safest sensitive file is often the one that is no longer retained. Keeping recordings indefinitely increases the amount of information that could be exposed if an account, device or supplier is compromised later.
A professional transcription workflow should therefore make retention visible and controllable. Check how long uploaded files and transcripts remain available, whether you can delete them when a project closes, and what happens to content when an account is cancelled. If your organisation has a retention schedule, the platform should help you follow it rather than create an unmanaged archive.
There is a trade-off. Longer retention is convenient when you need to revisit an interview, retrieve a quote or check a decision from a previous meeting. Shorter retention reduces exposure and supports data minimisation. The appropriate setting depends on the project, contractual commitments and your own record-keeping policy.
For recurring work, establish a simple rule before uploading. A journalist may retain recordings until publication and any necessary editorial review are complete. A consultant may remove raw recordings after the client has approved the final notes. A research team may need a documented retention period tied to participant consent and institutional requirements.
Questions to ask before uploading sensitive files
A provider does not need to publish every technical implementation detail, but it should provide direct answers to the security questions that affect your risk. Before uploading confidential audio or video, ask:
- Is the connection encrypted during upload and access?
- Are recordings, transcripts and backups encrypted while stored?
- Is two-factor authentication available or required?
- Who can access files within a shared workspace, and can permissions be controlled?
- Where are files and AI processing handled, and are there international data transfers?
- Is customer content used to train AI models or improve services?
- How long is content retained, and how do deletion and account closure work?
These questions are more useful than asking whether a provider is simply “secure”. They turn a broad claim into evidence you can compare against your organisation’s requirements.
How to reduce risk on your side
Platform controls work best when users follow sound working practices. Use a unique password and enable two-factor authentication wherever it is offered. Avoid sending recordings through personal inboxes or unapproved file-sharing services before upload. If you work in a team, give each person their own account rather than sharing credentials.
Be deliberate about exports too. Once a transcript is downloaded as a document or copied into a project system, its protection is governed by that destination. A carefully managed transcription workspace cannot protect a file that is later saved to an unmanaged personal device or forwarded to the wrong recipient.
It is also worth checking the legal basis for recording before any technical decision is made. Encryption protects a recording after it exists; it does not replace consent, clear participant notices or compliance with your organisation’s policy. For calls involving sensitive subjects, confirm the recording arrangements in advance and document the purpose for keeping the file.
A practical standard for professional transcription
For most working teams, the right expectation is straightforward: files should be encrypted in transit and at rest, access should be restricted and traceable, processing locations and data use should be transparent, and retention should remain under the customer’s control.
No service can remove all risk. The sensible goal is to understand where the risks sit, choose a provider that addresses them clearly, and avoid retaining more sensitive material than the work requires. Before you upload the next recording, check the provider’s stated controls and set the retention decision at the same time. That small step can prevent a useful transcript from becoming an unnecessary long-term liability.