USA v. Sealed Pen Register and Trap and Trace Device for Whatsapp LLC Account

The United States government has obtained a sealed pen register and trap and trace device order targeting a WhatsApp LLC account in the Southern District of Florida. The case, docket number 26-mj-08366, remains active but has not yet been assigned to a district judge.

The government seeks to collect metadata related to communications on the WhatsApp account, which typically includes numbers dialed and received but not the content of messages.

The case is proceeding under a magistrate judge's miscellaneous matter docket, indicating it involves warrant applications and orders rather than a full adversarial proceeding at this stage. On May 11, 2026, the court filed a sealed document, signaling ongoing judicial review or approval of the government's request.

The sealed nature of the filings and the lack of public details reflect the sensitive law enforcement interests involved, likely tied to an investigation requiring confidentiality.

The case illustrates the government's use of electronic surveillance tools under the Stored Communications Act and related statutes to gather non-content communication data from encrypted messaging platforms.

The absence of a named judge and limited docket activity suggest the matter is still in the early procedural phase, focused on obtaining and maintaining court authorization for the surveillance device.

Observers should note that pen register and trap and trace orders have lower legal thresholds than wiretap warrants, but they still require court approval and are subject to statutory limits on scope and duration.