Într-un avertisment comun, FBI și CISA au precizat că hackerii au reușit să compromită mii de astfel de conturi, fără a oferi detalii suplimentare.
„Activitatea vizează persoane cu valoare ridicată în domeniul informațiilor, precum actuali și foști oficiali guvernamentali americani, militari, figuri politice și jurnaliști”, se arată în comunicat.
În avertisment se subliniază că programele în sine și sistemele lor de criptare nu sunt puse sub semnul întrebării, însă hackerii au reușit să ocolească securitatea aplicațiilor dându-se drept echipe de securitate și păcălind utilizatorii să-și divulge codurile de securitate.
Reprezentanții Signal și Ambasada Rusiei la Washington nu au răspuns imediat solicitărilor de comentarii.
Ca reacție la acel avertisment, Signal a declarat că atacurile cibernetice au fost „realizate prin campanii sofisticate de phishing, concepute pentru a păcăli utilizatorii să partajeze informații” și că sistemele sale de criptare și infrastructura nu au fost compromise.
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