Cyber GTM Signals

The weekly read on where security buyers are moving — who is hiring security leadership, who just raised, and which vendors the AI assistants actually recommend. Free, 3-minute read, for cybersecurity GTM leaders. From the team behind GTMfusion (gtmfusion.com).

Two years after IBM sold QRadar, Claude still ranks it No. 3.

Sep 29, 2026

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2 min read

Two years after IBM sold QRadar, Claude still ranks it No. 3.

Perplexity puts Palo Alto's Cortex XSIAM in that same No. 3 slot. Plus three incidents where the security stack was the way in.

Martin Tantow

CrowdStrike, Microsoft, SentinelOne, Palo Alto. Nobody else got in.

Sep 22, 2026

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2 min read

CrowdStrike, Microsoft, SentinelOne, Palo Alto. Nobody else got in.

ChatGPT returned no EDR list at all. Plus a utility API with no authentication, and malware pushed through 100,000 marketing widgets.

Martin Tantow

Google paid $32B for Wiz. ChatGPT still leaves it off the list.

Sep 15, 2026

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3 min read

Google paid $32B for Wiz. ChatGPT still leaves it off the list.

Claude still names a CSPM brand Fortinet retired in 2024. Plus the EU reporting clock went live, and AI agents breached 395 companies.

Martin Tantow

Three email security brands own the AI answer. Four split the rest.

Sep 9, 2026

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3 min read

Three email security brands own the AI answer. Four split the rest.

Proofpoint leads on three of four engines. Plus a court records breach that ran three months undetected, and $100M into AI security.

Martin Tantow

Gemini's No. 1 AppSec vendor sold that business in 2024

Sep 2, 2026

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2 min read

Gemini's No. 1 AppSec vendor sold that business in 2024

Zero of 11 brands survive all four AI engines. Plus Boston Scientific stops shipping, and McKesson confirms a breach mid-extortion.

Martin Tantow

Only 2 of 7 IAM brands survive all four AI engines under one name

Aug 26, 2026

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4 min read

Only 2 of 7 IAM brands survive all four AI engines under one name

Plus: Apollo Global Management discloses a helpdesk social-engineering breach, Brinqa buys PlexTrac to close the exposure-management loop, and the Pentagon's CMMC compliance clock leaves 300,000 contractors guessing.

Martin Tantow