Microsoft to remove WoSign and StartCom certificates in Windows 10

Microsoft has concluded that the Chinese Certificate Authorities (CAs) WoSign and StartCom have failed to maintain the standards required by our Trusted Root Program. Observed unacceptable security practices include back-dating SHA-1 certificates, mis-issuances of certificates, accidental certificate revocation, duplicate certificate serial numbers, and multiple CAB Forum Baseline Requirements (BR) violations. Thus, Microsoft will begin the…

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Links in phishing-like emails lead to tech support scam

Tech support scams continue to evolve, with scammers exploring more ways to reach potential victims. Recently, we have observed spam campaigns distributing links that lead to tech support scam websites. Anti-spam filters in Microsoft Exchange Online Protection (EOP) for Office 365 and in Outlook.com blocked the said emails because they bore characteristics of phishing emails….

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Windows Defender ATP machine learning: Detecting new and unusual breach activity

Microsoft has been investing heavily in next-generation security technologies. These technologies use our ability to consolidate large sets of data and build intelligent systems that learn from that data. These machine learning (ML) systems flag and surface threats that would otherwise remain unnoticed amidst the continuous hum of billions of normal events and the inability…

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