Cybercriminals are now using legitimate online services like Google Calendar and Squarespace to deliver hybrid vishing messages, bypassing traditional email security measures. This tactic leverages the trusted reputation of these platforms to authenticate phishing emails, making them harder for secure email gateways to detect as fraudulent. Developers and tech professionals must implement stricter input validation and content anomaly detection to mitigate this evolving threat.
Read the full article at eSecurityPlanet
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