FBI Warns Russian Intelligence Targets Signal Backup Keys (infosecurity-magazine.com)

• Russian intelligence targeting Signal backup recovery keys of government officials, military, journalists, Ukrainian officials.
• Phishing messages mimic Signal support; attackers seek verification codes and PINs.
• FBI advises users to generate new backup keys and never share verification codes or PINs.

"The FBI issued a public service announcement on June 26, 2026, warning that Russian intelligence officers, including FSB officers and military hackers, are targeting Signal backup recovery keys of high-risk users. The phishing campaign aims to steal verification codes and PINs to take over accounts and access historical messages. The campaign was first reported in March 2026 when Dutch intelligence warned of similar attacks targeting government employees. The FBI provides security tips for Signal users."