Alarum Technologies Ltd (NASDAQ: ALAR) saw its shares tumble 23.6% in after‑hours trading on Thursday, 3 July 2026, after media reports that the U.S. Federal Bureau of Investigation is probing a possible role of its Israel‑based subsidiary NetNut in linking customers’ home internet devices without consent.
According to Bloomberg, the FBI is examining potential connections between NetNut, which sells access to residential proxy networks, and software known as “Popa” that is alleged to have been used to co‑opt users’ devices. The investigation has been ongoing for more than a year.
The Department of Justice disclosed that the FBI seized multiple internet domains as part of a coordinated law‑enforcement action targeting infrastructure associated with NetNut’s residential proxy platforms, as well as its administrators and users.
Omer Weiss, corporate legal counsel for Alarum, confirmed that the company was made aware on Thursday of the domain seizures and stated that Alarum “takes this matter seriously and will fully cooperate with law enforcement to ensure any misuse of its infrastructure is thoroughly investigated and those responsible are held to account.”
The FBI declined to comment on the investigation.