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Increased Browser-Based Attacks Targeting Business Applications

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2 unique sources, 2 articles

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Browser-based attacks targeting business applications have surged, exploiting modern work practices and decentralized internet apps. These attacks, including phishing, malicious OAuth integrations, and browser extensions, compromise business apps and data by targeting users. The attacks leverage various delivery channels and evasion techniques, making them difficult to detect and block. Phishing attacks have evolved to use non-email channels such as social media, instant messaging apps, and malicious search engine ads. These attacks often bypass traditional email security controls and are harder to detect. Attackers exploit the decentralized nature of modern work environments, targeting users across multiple apps and communication channels. Non-email phishing attacks can result in significant breaches, as seen in the 2023 Okta breach. The rise in these attacks highlights the need for enhanced browser security measures and better visibility into user activities within the browser.

Timeline

  1. 15.09.2025 14:55 2 articles · 14d ago

    Browser-Based Attacks Surge Targeting Business Applications

    Phishing attacks are increasingly delivered through non-email channels such as social media, instant messaging apps, and malicious search engine ads. These attacks exploit the decentralized nature of modern work environments, targeting users across multiple apps and communication channels. Modern phishing attacks often bypass traditional email security controls by using various communication channels and evasion techniques. Non-email phishing attacks are often undetected by traditional security measures, making them harder to mitigate. Attackers use techniques like DOM obfuscation, page obfuscation, and code obfuscation to evade detection. Phishing campaigns can be highly targeted, using specific geographic locations, email domain matches, or device types to tailor attacks. Compromised personal accounts can be used to launch targeted phishing campaigns against corporate users. Non-email phishing attacks can result in significant breaches, as seen in the 2023 Okta breach.

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Information Snippets

Similar Happenings

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Malicious npm package 'fezbox' uses QR codes to deliver cookie-stealing malware

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A new attack vector, dubbed ShadowLeak, allows hackers to invisibly steal emails from users who integrate AI agents like ChatGPT with their email inboxes. The attack exploits the lack of visibility into AI processing on cloud infrastructure, making it undetectable to the user. The vulnerability was discovered by Radware and reported to OpenAI, which addressed it in August 2025. The attack involves embedding malicious code in emails, which the AI agent processes and acts upon without user awareness. The attack leverages an indirect prompt injection hidden in email HTML, using techniques like tiny fonts, white-on-white text, and layout tricks to remain undetected by the user. The attack can be extended to any connector that ChatGPT supports, including Box, Dropbox, GitHub, Google Drive, HubSpot, Microsoft Outlook, Notion, or SharePoint. The ShadowLeak attack targets users who connect AI agents to their email inboxes, such as those using ChatGPT with Gmail. The attack is non-detectable and leaves no trace on the user's network. The exploit involves embedding malicious code in emails, which the AI agent processes and acts upon, exfiltrating sensitive data to an attacker-controlled server. OpenAI acknowledged and fixed the issue in August 2025, but the exact details of the fix remain unclear. The exfiltration in ShadowLeak occurs directly within OpenAI's cloud environment, bypassing traditional security controls.

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Fake FBI crime reporting portals used in cybercrime campaigns

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