Signal Foundation

Signal Foundation's messaging app, Signal, is a primary target of Russian state hackers due to its end-to-end encryption, which makes it popular among government officials for sensitive communications. The hackers are exploiting legitimate features like 'linked devices' and impersonating Signal Support to gain access to user accounts, raising concerns about the app's perceived security for classified information.

Signal accounts are among those targeted by state-backed hackers, similar to Meta Platforms===WhatsApp. The Portugal===Serviço de Informações de Segurança (SIS) clarified that Signal's end-to-end encryption has not been compromised, but user carelessness is being exploited.

Signal is mentioned as a privacy-focused communication app that features end-to-end encryption, contrasting with Meta Platforms===Instagram's decision to remove the feature.