It follows the revelation that senior national security officials included an Atlantic editor in their group chat.
March 25, 2025 By Will Shanklin
As it turns out, including a reporter in your national security leader group chat about military strikes isn't the only way to compromise sensitive information on Signal. NPR reported on Tuesday that, days after the Trump administration's preposterous and dangerous national security fumble, the Pentagon issued a warning against using the messaging app due to a phishing vulnerability.
"A vulnerability has been identified in the Signal messenger application," a department-wide email obtained by NPR reads. "Russian professional hacking groups are employing [Signal's] 'linked devices' features to spy on encrypted conversations." The publication says the memo states that Russian hacking groups are "targeting Signal Messenger to spy on persons of interest."