Leaked Facebook data reveals chief Mark Zuckerberg uses Signal app 0 06.04.2021 11:14 Business Standard As Facebook CEO Mark Zukerberg's phone number also emerged among the leaked data of 533 million Facebook users, a security expert has revealed that the Facebook CEO uses Signal. Партнёры Smi24.net Все новости за 24 часа Музыкальные новости Агрегатор новостей 24СМИ