Menlo Security's annual browser security report reveals a 140% increase in browser-based phishing attacks compared to the previous year, driven primarily by generative AI-based threats. Microsoft, Facebook, and Netflix are the most impersonated brands, while nearly 600 incidents of GenAI fraud emerged in 2024. Cybercriminals developed nearly 1 million new phishing sites monthly. Browser vulnerabilities and sophisticated tactics enable these attacks to evade traditional security measures. The report details various common attack vectors, including fraudulent ads and exploitation of collaboration tools.
In 2024, nearly 600 incidents of GenAI fraud were identified, where imposter sites used GenAI platform names to manipulate and exploit unsuspecting victims.
Menlo Security reported a 140% increase in browser-based phishing attacks compared to 2023, indicating a significant surge in generative AI threats.
Microsoft, Facebook, and Netflix were the brands most commonly impersonated in browser-based phishing attempts, showcasing the ongoing risks to major platforms.
Threat actors are evolving tactics to focus on sophisticated browser-based attacks that bypass traditional endpoint and network security controls.
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