A Nebraska congressman is once again accusing the end-to-end encrypted messaging app Signal of being unsecure, weeks after initially revealing his account had been compromised by Russian hackers.
In a post on X, Rep. Don Bacon, the chairman of the House Armed Services Cyber, Information Technologies, and Innovation subcommittee, questioned the app’s security while weighing in on a story in The Atlantic regarding the use of Signal among Trump administration officials.
Signal is not secure and not good for sensitive communications. I was notified by law enforcement and House cyber experts that Russia hacked my Signal months ago. https://t.co/wqTNUQdLo8
— Rep. Don Bacon 🇺🇸✈️🏍️⭐️🎖️ (@RepDonBacon) July 1, 2026
“Signal is not secure and not good for sensitive communications,” Bacon, a Republican who is not seeking re-election this year, wrote. “I was notified by law enforcement and House cyber experts that Russia hacked my Signal months ago.”
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Bacon first revealed the hack during a cybersecurity conference last month in Washington, when he said he had been informed that Russian government-linked operatives had compromised his Signal account “four to five months” earlier.
In remarks to Politico at the time, Bacon said the hackers posed as a close acquaintance to take over his account. While details were scarce, the incident he described bears the hallmarks of a spearphishing attack.
FBI alert
Bacon’s tweet Wednesday came just days after the FBI issued an alert warning that Russian hackers have targeted “individuals of high intelligence value” through similar means. The FBI said the hackers posed as Signal customer support employees in order to trick targets into handing over their Signal backup recovery keys. That would enable a hacker to load a copy of a user’s messages onto a new device.
In April, the German news website Der Spiegel reported that the tactic had allowed the Russians to compromise more than 300 accounts in the country, including those of high-profile politicians. It remains unclear how many users the hacking campaign has compromised worldwide.
Signal responded in March by introducing several new notifications, including one warning users that “Signal will never message you for a registration code, PIN or recovery key.”
Despite concerns over the safety of Signal, the hacks have relied entirely on tricking users, not on exploiting Signal’s security. No evidence has shown Signal’s end-to-end encryption to be compromised.
Bacon previously criticized Trump administration officials for using Signal, specifically after they shared sensitive war plans with a journalist last year, when he was inadvertently added to a Signal group chat with Defense Secretary Pete Hegseth, CIA Director John Ratcliffe and others.
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