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John Leyden

Reporter

Indexed articles, last 90 days
10
Latest publication
Sep 1, 2026
Outlet visibility, for CSO Online
Top 5M sites
Earliest in this view
Jul 9, 2026
The latest indexed work is over 30 days old. There may be a gap in what we hold.

Latest articles

  1. Article · Sep 1, 2026 · John Leyden

    Microsoft nudges enterprise security closer to its passwordless future. But ‘123456’ will survive. (opens the original)

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    Today marks the beginning of the end of an era for enterprise Microsoft authentication. As of Sept. 1, passkeys are now the default authentication method for Entra ID, Microsoft’s cloud-based identity and access management (IAM) service. By Feb. 1, 2027, Microsoft-provided SMS and voice authentication will be a thing of the past. The move is seen as one aimed at pushing enterprises toward passwordless authentication — something security leaders are broadly on board with but often struggle to ful

  2. Article · Aug 14, 2026 · John Leyden

    5 key takeaways from Black Hat USA 2026 (opens the original)

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    AI’s potential as a security tool and the danger of autonomous AI agents as a new attack surface were key themes of the presentations and product announcements at Black Hat and DEFCON in Las Vegas last week. Here are some key takeaways from this year’s hacker summer camp that CISOs should review while developing cybersecurity strategies. Microsoft’s David Weston delivered a keynote at Black Hat arguing that AI is making advanced vulnerability discovery and exploit development cheaper and faster,

  3. Article · Aug 13, 2026 · John Leyden

    Microsoft wants you to rethink your approach to cyber defense (opens the original)

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    Cyber defenders need to shake off traditional best practices and switch from reactive patching to building inherently resilient systems in the face of AI-accelerated vulnerability discovery, according to a senior security manager at Microsoft. David Weston, group manager in the Windows team at Microsoft, told delegates at Black Hat USA that traditional approaches to vulnerability remediation fail to work in an era when AI tools are making vulnerability discovery and exploit development cheaper,

  4. Article · Aug 6, 2026 · John Leyden

    Evidence points to cybercriminals stepping up their AI game (opens the original)

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    More evidence is emerging about how AI is becoming part of the day-to-day workflow for cybercriminals, from building and refining tools to managing infrastructure and accelerating vulnerability research. Drawing on recovered prompt logs, attack tooling, and threat actor conversations, research from Cisco Talos documents how AI is being used to develop malicious code, build fraud infrastructure, and accelerate vulnerability research and exploitation. The study, released during the Black Hat USA c

  5. Article · Jul 30, 2026 · John Leyden

    A Scattered Spider member was indicted. Microsoft’s GDID went to trial. (opens the original)

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    A recently released criminal complaint against Peter Stokes, an alleged member of the Scattered Spider cybercrime group, reveals previously unpublicized details about Windows telemetry. Microsoft has never exactly had a reputation for being privacy-focused, however the complaint reveals the important part played by Microsoft’s Global Device Identifier (GDID), a persistent identifier tied to a Windows installation, in the case. GDID enabled investigators to correlate the suspect’s Windows install

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