They have no right anywhere in American law that the victim of a search warrant must keep it secret. The government has no right to demand that a person keep secret that cops have stopped by to interview them.
So far the courts have ruled otherwise.
Elon Musk has petitioned the U.S. Supreme Court
<><>to review a trial court order
<><>that allowed govt prosecutors to include an enforceable non-disclosure order
<><>as part of a search warrant.
Reference: The Musk petition for a writ of certiorari relates to a court order arising from a search warrant that notorious special counsel, Jack Smith, served on Musk’s X demanding data and records from former President Donald Trump’s Twitter account.
The problem from X’s viewpoint was an unusual attachment included with the warrant which demands: “A nondisclosure order blocking Twitter/X from disclosing to former President Trump the fact that the government had seized his records.”