WeTransfer is the crowd favourite for quick file sending. My MX Data is purpose built for secure file sharing for business, with named user exchanges, end to end audit trails, and a quantum secure patented methodology for long term confidentiality. Both encrypt, both are simple to start with. The difference shows up when files are sensitive, regulated, or need traceability for audits and contracts.
This comparison focuses on security architecture, controls, and the evidence you can produce later. It draws on public reviews of WeTransfer security practices and MX’s design for controlled B2B exchange.
What both services get right
For many day to day transfers, both platforms deliver a secure baseline.
- Encryption in transit and at rest: WeTransfer and MX use TLS for transport and AES 256 for storage.
- Account protection: Passwords and optional two factor authentication can be enabled.
- Availability at scale: Both run on ISO 27001 certified infrastructure with reliable performance.
Where the models diverge for business use
WeTransfer is built for ease and speed. My MX Data is built for controlled, auditable exchange between named users. The distinction matters when transfers involve client confidentials, regulated records, or intellectual property.
| Criterion | WeTransfer | My MX Data |
|---|---|---|
| End to end encryption | Not provided, brief server side plaintext during transition | Yes, plus ASR quantum aware methodology |
| Named user access | Link based with passwords | ✓ |
| Audit trails | Basic tracking in Pro and Business tiers | Full end to end logs for who, when, where, and action |
| Data sovereignty | Standard cloud regions | Choose shard regions to facilitate residency needs |
| Transfer limits | Up to 200 GB with paid plans | Unlimited file size transfers |
| Compliance posture | GDPR aligned, but no end to end encryption | Controls and records that facilitate GDPR and ISO programmes |
| Use case focus | Simple, temporary sharing to broad audiences | Controlled B2B handoffs between named users |
Security architecture: the key difference
Transport and storage encryption
Both services encrypt in transit with TLS and at rest with AES 256. Files on WeTransfer sit in ISO 27001 certified data centres, and the platform offers password protected links and optional two factor authentication. MX applies the same cryptographic strength, then adds system level controls for named users A model where a file can be sent only to specific accounts, not to anyone holding a public link.
See access controls and granular permissions.
End to end encryption and evidence
End to end encryption Data is encrypted on the sender side and decrypted only by the intended recipient, never exposed in plaintext on the service. is not provided by WeTransfer, meaning there are brief server side moments where content is decrypted between protection layers, as noted by independent reviews. MX is designed for end to end confidentiality with full audit trails and ASR which stands for Anonymise, Shard, Restore.
ASR is a quantum secure patented methodology that supports long term confidentiality. Combined with data sovereignty The ability to select where data is stored and processed to match legal or contractual requirements.
Learn more , it helps teams build a forward looking security posture. MX controls and records facilitate compliance outcomes, though they do not guarantee them.
When to pick each service
Choose based on sensitivity, governance needs, and the audience you share with.
- WeTransfer fits when: You need to send large media or marketing files quickly to many recipients, link passwords and short expiry are sufficient, and you do not require end to end encryption or full chain of custody.
- My MX Data fits when: You must prove who accessed what, restrict sharing to named users, control residency, or protect client data and IP with end to end encryption and ASR. See encrypted file sharing and B2B secure exchange.
A four step decision quick guide
Use this to pick the right tool for each transfer.
Classify the file
Client confidential, personal data, or IP points you to MX secure sending. Public or promotional assets may go through WeTransfer.
Decide the audience
If recipients must be named users with explicit permissions and revocation, choose MX.
Set residency and retention
Need UK or EU storage only, and deletion proof. MX provides data sovereignty and audit exports.
Capture evidence
When audits are likely, use MX logs to show who, when, where, and the actions taken.
Bottom line for business teams
WeTransfer is great for quick distribution with helpful features in paid plans, including passwords, expiry selection, download tracking, and transfers up to 200 GB. It complies with GDPR and does not resell data. For mission critical confidentiality, the absence of end to end encryption and brief plaintext handling server side can be a limitation as external analyses point out. My MX Data focuses on secure, traceable handoffs with unlimited file size, ASR, and full auditability that facilitates stronger governance. Review the features and pricing, or compare approaches in Dropbox vs MX.
A clear takeaway
Use WeTransfer for simple, short lived sharing to broad audiences. Use My MX Data when files are sensitive, recipients must be named users, residency matters, and you need end to end encryption with exportable audit evidence. MX also adds an ASR methodology that supports long term confidentiality.
If you need proof and protection in equal measure, start with MX and keep WeTransfer for public assets.
