Exchange sensitive business files with customers, suppliers and partners without losing control.

B2B secure file exchange is the controlled transfer of information between separate organisations, such as a business and its customers, suppliers, contractors or professional advisers. The important difference is that the exchange keeps a clearer link between the file, the intended recipient and the activity that follows.

My MX Data is designed specifically for this type of external exchange. MX supports named-recipient access, permissions, expiry controls, large-file transfer and audit records, helping organisations avoid a patchwork of email attachments, public links and one-off transfer tools.

This is particularly useful where files are commercially sensitive, regulated, technically large or part of an ongoing supply-chain process. The aim is to make external exchange practical without giving up the accountability expected inside the organisation.

MX can limit a B2B exchange to named or approved recipients, which is useful when files are moving outside your own organisation and the sender needs confidence about who is meant to receive them. It avoids relying solely on a public link that can be copied or forwarded.

Access can be refined further through permissions, multi-factor authentication, expiry settings and other transaction-level controls. Administrators can therefore apply different conditions to different exchanges rather than forcing every supplier, customer or project partner through exactly the same setup. The MX features overview gives more detail on the access, administration and oversight tools available.

Yes. MX supports very large files and datasets without arbitrary file-size restrictions, which makes it suitable for B2B workflows involving CAD data, product files, software packages, high-resolution media, technical documents or large project folders.

That can be important when a customer or supplier exchange would otherwise be broken into multiple uploads or moved to a separate consumer transfer service. Keeping the complete dataset within the same controlled workflow makes the exchange easier to track. See our secure large-file transfer page for more detail.

Authorised senders and administrators can review activity associated with B2B exchanges, including uploads, access, downloads, comments, recipient activity, timestamps and transaction history where relevant. That gives teams a clearer record after the file crosses an organisational boundary.

In practice, this can answer useful operational questions. Has the supplier downloaded the latest package? Is a customer still waiting to collect a file? Which recipients are pending? The records can also support internal investigations and audit preparation. For a deeper explanation of the evidence created around file activity, see our guide to file audit trails.

MX protects B2B exchanges through a combination of security and access controls. AES-256 encryption is one part of that model, alongside named-recipient access, multi-factor authentication, permissions, expiry settings and detailed records of activity.

Where stronger protection is required, ASR adds a separate method of protecting sensitive data. It anonymises the information, separates the transformed data into protected shards and restores it for an authorised recipient. ASR should be viewed as an additional layer rather than another name for encryption.

Together, these controls help organisations manage the practical risks that appear when confidential information moves between separate businesses. More detail is available on our encrypted file-sharing page.

Email attachments and public links are easy to use, but cross-company exchanges can become difficult to govern when files are forwarded, duplicated or left available for longer than intended. The sender may also have limited evidence showing whether the intended recipient actually accessed the information.

MX keeps the exchange tied to named recipients, access conditions and recorded activity. That gives both operational teams and administrators a clearer view of who was included, what was transferred and what happened afterwards.

Email and mainstream cloud tools still have valid roles. MX is aimed at situations where a business needs a more deliberate, auditable handoff. Our secure file transfer guidance explains this exchange-focused approach.

Yes. B2B exchanges can use expiry settings so access does not have to remain open indefinitely. This is useful for tender documents, commercial packs, project files or other information that is only relevant for a defined period.

Recipient controls and permissions can also be used to limit access according to the people involved and the purpose of the transaction. Applying these conditions at exchange level lets an organisation use tighter restrictions for sensitive files without making every routine transfer unnecessarily complicated.

MX can help organisations support compliance objectives by providing controls around who receives information, how access is managed and what evidence exists afterwards. Encryption, multi-factor authentication, permissions, expiry settings, named recipients and audit trails can all contribute to a stronger information-governance process when files move between separate businesses.

Those features are only one part of compliance. Each organisation remains responsible for its policies, legal basis, contracts, staff training, retention rules, endpoint security, identity management and the way the platform is configured and used.

For B2B exchanges, the audit trail is particularly useful because it can preserve evidence across an organisational boundary. Teams can review who was included, whether files were accessed or downloaded and which activity is still pending.

UK organisations handling personal data can review our GDPR file-sharing information. For broader information-security management, the ISO compliance guidance may also be relevant.