Can Text Messages Be Used in SEC Cases?
Yes, the Securities and Exchange Commission (SEC) can use your text messages as evidence in SEC investigations, along with chats on WhatsApp, WeChat, Signal, and iMessage. At Chapman, Dowling & Mallek, our Detroit federal securities lawyer opens every SEC text message investigation with the same advice: save everything.
How Does the SEC Use Texts to Prove Fraud?
In insider trading and market manipulation cases, the SEC must show what a person knew, what they meant to do, and who they were working with. Messages frequently answer those questions better than any witness. Investigators usually look for the following:
- A text sent shortly before a trade
- The members of a group chat
- Nicknames or code words
- Requests to switch to another app
Michigan matters are handled by the SEC’s Chicago Regional Office, which examines firms and investigates cases in nine states. Lawsuits against local defendants can be filed at the U.S. District Court for the Eastern District of Michigan in downtown Detroit. Our team builds strong Eastern District of Michigan SEC defense strategies.
Off-Channel Communications, SEC Fines, and Recordkeeping Rules
Off-channel communications are work messages sent outside the systems a financial firm is required to archive. From late 2021 to early 2025, the SEC and the Commodity Futures Trading Commission fined more than 100 firms over $3 billion combined for failing to save them. The SEC has filed fewer of these cases since then, but the rules are unchanged, and FINRA still fines firms and brokers.
SEC compliance for Detroit financial advisors in Wayne, Oakland, and Macomb counties starts with records. Firms commonly put these controls in place:
- Approved apps that archive messages
- Written rules for personal phones
- Regular staff sign-offs
The same archiving rules do not cover auto industry executives. Their texts can still be subpoenaed when the SEC investigates a public company’s trading or disclosures.
Can the SEC Subpoena Personal Text Messages on Your Own Phone?
Yes, a personal phone is covered. A company’s “Bring Your Own Device” policy does not shield it, because 15 U.S.C. § 78u(b) lets the SEC demand any correspondence or records it considers relevant. The law draws no line between a work phone and a personal one.
Deleting texts after you learn of an investigation can lead to criminal obstruction charges, even if the messages were harmless. Turning over a phone without advice carries its own risks, since it may contain messages protected by the attorney-client privilege. The scope of a subpoena can be negotiated, so purely personal messages do not always have to be turned over.
Get Advice From Our Detroit Federal Securities Lawyer Before You Touch Your Phone
Do not delete a single message or hand your phone to anyone until counsel has read the subpoena or audit letter. Chapman, Dowling & Mallek provides Michigan federal white-collar defense with careful preparation behind every response to the government. Your consultation is free, and our 24-hour hotline at (346) 242-7626 takes calls and texts. You can also contact our team online.