Compromised Certificate News Today

By Eduard Kovacs on January 13, 2021 Email security company Mimecast on Tuesday revealed that a sophisticated threat actor had obtained a certificate provided to certain customers. According to Mimecast, it learned from Microsoft that hackers had compromised a certificate used to authenticate Mimecast Continuity Monitor, Internal Email Protect (IEP), and Sync and Recover products with Microsoft 365 Exchange Web Services. “As a precaution, we are asking the subset of Mimecast customers using ...