Microsoft 365 Vulnerability Let Hackers Bypass Anti-phishing Feature

A flaw in Microsoft 365 has been discovered that allows hackers to circumvent anti-phishing measures. The glitch allows bad actors to hide the ‘First Contact Safety Tip’, a warning that usually appears when users receive an email from a source they don’t typically interact with. The vulnerability is hidden within CSS style tags. Despite being made aware of the issue, Microsoft has decided not to fix it immediately, as it is largely related to phishing attacks.