AI transcription can be secure, but it depends on the tool. Check for: TLS + AES-256 encryption, automatic audio deletion, EU servers, available DPA, and that your data is not used for training. VOCAP meets all these requirements.
Table of Contents
- The real risks of AI transcription
- GDPR and transcription: what you need to know
- Is your data used to train models?
- Encryption and technical protection
- Audio retention policies
- Security comparison across tools
- Requirements by sector: legal, medical, financial
- Enterprise security checklist
- How VOCAP protects your data
- FAQ
The real risks of AI transcription
When you upload audio to a transcription tool, you're transferring potentially sensitive data: business conversations, personal data, medical or legal information. The main risks are:
Unauthorized storage
Some platforms retain your audio indefinitely on their servers, even after completing the transcription.
Used for AI training
Free or freemium tools may use your recordings to improve their models, exposing confidential content.
International data transfers
If servers are outside the EU, your data may be subject to less protective legislation.
Third-party access
Human reviewers (for quality improvement) may listen to snippets of your recordings without explicit consent.
GDPR and transcription: what you need to know
The EU's General Data Protection Regulation (GDPR) sets strict requirements for personal data processing. Voice recordings are personal data because they identify individuals.
Key GDPR requirements for transcription
| Requirement | What it means | What to check |
|---|---|---|
| Legal basis | You need a valid reason to process audio | Consent, legitimate interest, or contract |
| Data minimization | Only process necessary data | Is audio deleted after transcription? |
| Storage limitation | Don't retain longer than necessary | Clear and short retention policy |
| DPA | Data Processing Agreement with provider | Is a signable DPA available? |
| International transfers | Data outside EU needs safeguards | Server location, contractual clauses |
| Data subject rights | Access, rectification, deletion | Can you easily delete your data? |
Is your data used to train models?
| Tool | Uses data for training? | Source |
|---|---|---|
| VOCAP | No | Privacy policy, audio deleted post-processing |
| OpenAI Whisper API | No (via API) | OpenAI API data usage policy |
| Otter.ai | May use anonymized data | Terms of service |
| Descript | Not by default | Privacy policy |
| Rev | Human reviewers may access | Hybrid AI+human service |
| Google STT | No (via paid API) | Cloud terms |
Encryption and technical protection
| Protection level | What it covers | Standard |
|---|---|---|
| In transit | Audio upload/download | TLS 1.2 minimum, TLS 1.3 recommended |
| At rest | Audio stored on server | AES-256 |
| In processing | Audio during transcription | Isolated environment, memory cleared |
| Deletion | Audio after processing | Automatic immediate deletion |
Audio retention policies
| Tool | Audio retention | Transcription retention |
|---|---|---|
| VOCAP | Immediate deletion | As long as user keeps it |
| Otter.ai | As long as account exists | As long as account exists |
| Descript | As long as project exists | As long as project exists |
| Rev | 30 days (configurable) | As long as account exists |
| Google STT | Not retained (API) | Not retained (API) |
Security comparison across tools
| Feature | VOCAP | Otter | Descript | Rev | Sonix |
|---|---|---|---|---|---|
| Transit encryption | TLS 1.3 | TLS 1.2 | TLS 1.2 | TLS 1.2 | TLS 1.2 |
| At-rest encryption | AES-256 | AES-256 | AES-256 | AES-256 | AES-256 |
| Audio deletion | Immediate | Manual | Manual | 30 days | Manual |
| Training data | No | Possible | No | Reviewers | No |
| DPA available | Yes | Enterprise | Enterprise | Yes | Yes |
| EU servers | Yes | No (US) | No (US) | No (US) | No (US) |
Requirements by sector
Legal sector
- Attorney-client privilege: provider must not access content
- Controlled retention with on-demand deletion
- Audit trail: who accessed what, when
- DPA mandatory in the EU
Healthcare
- Mandatory encryption (transit + at rest)
- BAA (Business Associate Agreement) in the US
- Anonymization or pseudonymization where possible
- Regular access audits
Financial sector
- MiFID II: 5-7 year retention for certain recordings
- Immutability: transcripts must not be editable
- Strict access control and encryption
- Compatibility with existing compliance systems
Enterprise security checklist
1. Where is data processed and stored? EU servers?
2. What is the audio retention policy? Automatic deletion?
3. Is data used for AI model training?
4. Is a DPA (Data Processing Agreement) available?
5. What encryption is used? (TLS 1.2+ in transit, AES-256 at rest minimum)
6. Security certifications? (SOC 2, ISO 27001)
7. Can provider employees access your audio?
8. Can you delete all your data on demand?
9. Sector-specific compliance? (HIPAA, MiFID II, etc.)
10. Access and operations audit log available?
How VOCAP protects your data
- TLS 1.3 encryption for all data transfers
- AES-256 encryption for data at rest
- Immediate audio deletion after processing
- No training data usage: your audio doesn't feed any model
- EU servers (Railway, European infrastructure)
- JWT authentication with revocable tokens
- Rate limiting to prevent abuse
- Security headers: CSP, HSTS, X-Frame-Options
Transcribe with peace of mind
15 minutes free. Audio deleted after processing. No training data usage.
Start free →Frequently asked questions
Is AI transcription secure?
It depends on the tool. VOCAP uses TLS 1.3 + AES-256 encryption, deletes audio immediately, and doesn't use data for training.
Does AI transcription comply with GDPR?
Not automatically. It depends on server location, data retention, DPA, and training data policy. VOCAP processes in the EU and complies.
Is my audio used to train models?
Not at VOCAP. OpenAI's Whisper API also doesn't use customer data for training. Some free tools may.
How long is my audio stored?
VOCAP deletes audio immediately after processing. Others may retain it 30 days or indefinitely.
What should I check for enterprise use?
EU servers, DPA, encryption, retention policy, security certifications, and sector-specific compliance.
Can I transcribe confidential recordings?
Yes, with tools offering encryption, automatic audio deletion, local servers, and a signed DPA.