A vulnerability in Microsoft 365 (formerly Office 365) has been found that allows malicious actors to bypass anti-phishing measures. One of the anti-phishing features available in Exchange Online Protection (EOP) and Microsoft Defender to Office 365 enterprises is the ‘First Contact Safety Tip.’ In the first contact safety tip, users are cautioned when they get an email from a sender that they don’t typically communicate with.

Source: GBHackers