Does SEC Rule 17a-4 require broker-dealers to keep electronic communications like texts and chat?

Short answer: yes. SEC Rule 17a-4, read together with Rule 17a-3, requires broker-dealers to preserve the records they are obligated to make and to keep certain business communications. When a text message, chat, or other electronic message relates to the firm’s business as a broker-dealer, it can be a record that must be retained, regardless of the device or app used to send it.

What the rules cover

The federal securities recordkeeping framework rests on two companion rules:

• Rule 17a-3 specifies the records a broker-dealer must create.
• Rule 17a-4 specifies how long those records must be kept, in what condition, and how they must be made accessible to regulators.

The key principle is content over channel. A communication is judged by what it says and whether it concerns the firm’s business, not by whether it traveled over email, a messaging platform, or SMS. “Off-channel” communications on personal phones or unapproved apps do not escape the obligation if their content is business-related.

Retention and accessibility

Broker-dealer records generally must be preserved for defined periods and remain readily accessible for an initial stretch, then retrievable thereafter. Rule 17a-4 has historically required that electronic records be kept in a non-rewriteable, non-erasable format, often described as “WORM” (write once, read many). The SEC has since modernized this to permit an alternative audit-trail approach, but the core goal is unchanged: records must be authentic, complete, and tamper-evident.

Firms are also expected to maintain index/audit capabilities, designate a person to provide records to examiners, and arrange third-party access to data where required.

Practical implications

• Treat business texts and chats as records subject to capture, retention, and supervision.
• Set policy on which channels are approved, and capture communications on those channels.
• Recognize that allowing employees to conduct business on uncaptured personal channels creates significant recordkeeping and supervision exposure.

These obligations mirror broader records-management principles: define what is a record, capture it reliably, retain it for a set period, and keep it usable and trustworthy over time. For more on retention concepts generally, see our federal records hub.