Cybersecurity guru Steve Gibson joins Leo Laporte every Tuesday. Steve and Leo break down the latest cybercrime and hacking stories, offering a deep understanding of what's happening and how to protect yourself and your business. Security Now is a must listen for security professionals every week. Records live every Tuesday at 4:30pm Eastern / 1:30pm Pacific / 20:30 UTC.
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episode 942: Encrypting ClientHello - EXIM eMail Servers Exposed, Windows 11 Passkeys, Bing Chat Malware Risk
- Exim email server ignored ZDI's responsible disclosure of critical remote code execution flaws for over a year, putting millions of servers at risk.
- Malicious ads are appearing in Bing Chat responses, promoting fake sites distributing malware.
- Windows 11 now natively supports passkeys, though browser support may make this redundant.
- Researchers exploit WiFi beamforming side-channel to potentially reveal keystrokes, but practicality is limited.
- The ECH TLS extension encrypts the ClientHello packet to hide SNI data.
- Exim disclosure timeline and impact on millions of vulnerable servers.
- Bing chat ads mimic search result malvertising risks amplified by chatbot trust.
Show notes: https://www.grc.com/sn/SN-942-Notes.pdf
Hosts: Steve Gibson and Leo Laporte
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