Secure messaging in trading operations must protect conversations without making them disappear. A desk needs to exchange prices, clarify orders and discuss research quickly. The firm also needs reliable records of what was said, who received it and how supervisors handled concerns.
Encryption alone does not meet that brief. A messaging service can protect data in transit while leaving compliance staff without searchable records. The practical goal is a controlled communication process: approved channels, appropriate access, dependable capture and documented review. The regulatory examples below focus on US securities firms; other registrations and jurisdictions need their own assessment.
Separate Security From Recordkeeping
Security controls and compliance controls answer different questions. Security asks whether an unauthorized person can read, alter or steal a conversation. Recordkeeping asks whether the firm can preserve and reproduce the records it must retain. Supervision asks whether someone reviews relevant communications and acts on problems.
Treat these as separate acceptance tests when selecting a platform. An encrypted chat application should not receive approval simply because its security features look strong. Test whether its archive integration captures messages, attachments, participants and supported edits without relying on employees to forward conversations manually.
For US broker-dealers using electronic recordkeeping systems, the SEC’s electronic recordkeeping amendments permit either the prescribed audit trail approach or non-rewriteable, non-erasable storage, commonly called WORM. The audit trail alternative must permit recreation of an original record after modification or deletion. Ordinary backup storage is not automatically a substitute.
Define Approved Channels Around Actual Desk Work
A channel policy should identify which tools employees may use, with whom and for what purpose. Cover internal chat, client messaging, mobile texts, external research groups and file sharing. State whether each feature is approved, restricted or prohibited. Approval of a platform should not automatically approve every feature it introduces.
Give employees a workable route for urgent conversations. If the approved mobile service is awkward or unavailable, “use the approved service” becomes a policy with a hole in it. Provide an alternative and an escalation contact rather than leaving staff to improvise.
The consequences are not theoretical. On August 14, 2024, the SEC announced settlements involving 26 firms and $392.75 million in combined penalties for recordkeeping failures. The SEC’s off-channel communications enforcement announcement describes unapproved communications involving required records, including failures involving supervisors and senior managers.
Consider a hypothetical client who texts an order amendment to a trader’s personal phone. The procedure should tell the trader how to preserve and report the message, move further discussion to an approved channel and confirm the instruction through the firm’s order process. Deleting the text is not a sensible repair strategy.
Build Access Controls Around Roles
Set access by business need rather than convenience. A trader, external analyst, client and archive administrator should not receive the same permissions. Use stronger authentication, controlled guest invitations and prompt removal of access when someone leaves or changes responsibilities.
External rooms deserve particular attention. Assign an owner, define permitted participants and review membership. Before adding someone to an existing conversation, check whether the platform exposes earlier messages or attachments. A new participant should not inherit sensitive history by accident.
Keep administrative access separate from routine use where practical, and log privileged changes. Coordinate these measures with the controls addressing cybersecurity risks in connected trading platforms, particularly account compromise, third-party integrations and stolen access tokens. A well-protected archive is little comfort if an intruder can enter the live conversation.
Make Supervision Evident, Not Just Possible
Preserving messages does not demonstrate that anyone supervised them. Under FINRA Rule 3110 on supervision, member firms need procedures for reviewing relevant correspondence and internal communications. Required reviews must be evidenced in writing. Review evidence must identify the reviewer, the communication, the review date and actions taken over material regulatory issues; opening a message alone is insufficient.
Translate that obligation into an operating process. Assign reviewers, establish escalation routes and set response expectations for different concerns. A possible order-handling error may require immediate attention; a routine policy question may not. Avoid a queue where every alert carries the same priority and nothing has a clear owner.
Review the process itself, too. Use controlled test cases to check whether expected alerts reach the right team. Examine missed cases and unnecessary alerts, then document changes. Keep reviewer decisions connected to the underlying conversation so a later investigation does not become an exercise in inbox archaeology.
Control AI Features Before Switching Them On
AI meeting summaries, translations and suggested replies need their own approval. Evaluate what information leaves the firm, who can retrieve it, whether a vendor may use it for model training and how outputs enter the archive.
FINRA Regulatory Notice 24-09 on generative AI confirms that existing obligations apply to AI use, including third-party tools. For AI used in supervision, it identifies governance concerns including model risk, privacy, data integrity, reliability and accuracy.
Do not replace an original conversation with an AI summary. A summary may omit a qualification, confuse speakers or turn a tentative discussion into an apparent instruction. Preserve the underlying record and label generated material clearly. Treat AI alert rankings as review support, not proof that a message is harmless or misconduct occurred. Broader monitoring methods belong within the firm’s trade surveillance and anomaly detection process.
Test Retrieval and Plan for Failure
Before rollout, run a realistic retrieval exercise. Ask operations to reproduce a conversation containing an attachment, an edited message and an external participant. Compare the export with the test conversation and document missing content or context.
Agree retention schedules and preservation holds with legal and compliance teams rather than applying one deletion setting everywhere. Define what happens when capture fails: who receives the alert, whether the affected channel stays available and how staff communicate meanwhile. Test vendor exit procedures as well.
The final approval question is practical: can the firm protect the conversation, preserve the required record and demonstrate meaningful supervision? If any answer depends on someone remembering to take a screenshot, the process needs more work.