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Healthcare IT professional reviewing security audit results on screen, representing Greenway Health zero trust implementation
Profiles

Greenway Health's New CISO: Zero Critical Audits, Zero Trust, in 18 Months

Marissa Darden, who joined Greenway Health in 2024, has overhauled the security program of the EHR provider, which serves over 100,000 healthcare providers. Here's how she did it.

Sarah Chen · Apr 23, 2026

Modern financial district glass tower, representing Blackstone enterprise security transformation across 230+ portfolio companies
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Blackstone's New CSO on Day 91: Securing 230+ Companies

Apr 20, 2026

Dark screen with encrypted ransom message, representing the high-stakes world of ransomware negotiation tactics
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Inside the Mind of a Ransomware Negotiator

Apr 15, 2026

Pacific Northwest hospital campus with mountain backdrop, representing healthcare CISO leadership in the region
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10 CISOs to Watch in Pacific Northwest Healthcare

Apr 15, 2026

New York City Times Square media district at night, representing CISOs defending major media and publishing companies
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Power Players: 10 CISOs Defending NYC's Media Empires

Apr 12, 2026