"In some cases, Google has found Russia's notorious, stealthy hacking group Sandworm (or APT44, part of the military intelligence agency GRU), to work with Russian military staff on the front lines to link Signal accounts on devices captured on the battlefield to their own systems, allowing the espionage group to keep tracking the communication channels."
"In other cases, hackers have tricked Ukrainians into scanning malicious QR codes that, once scanned, link a victim’s account to the hacker’s interface, meaning future messages will be delivered both to the victim and the hackers in real time."
Gee, I dunno, sounds like hacking the endpoint to me (which always defeats end-to-end encryption).
"In some cases, Google has found Russia's notorious, stealthy hacking group Sandworm (or APT44, part of the military intelligence agency GRU), to work with Russian military staff on the front lines to link Signal accounts on devices captured on the battlefield to their own systems, allowing the espionage group to keep tracking the communication channels."
"In other cases, hackers have tricked Ukrainians into scanning malicious QR codes that, once scanned, link a victim’s account to the hacker’s interface, meaning future messages will be delivered both to the victim and the hackers in real time."
Gee, I dunno, sounds like hacking the endpoint to me (which always defeats end-to-end encryption).