Editorial

Why CISOs Disengage with a Vendor 

3 CISO contributors discuss the cost of a lapse in support

Tuesday, June 16, 2026 | 5 MINS

Trust can take years to build and moments to lose.  Even the biggest and best suppliers let their customers down sometimes.

In this edition of Unpatched, CISOs discuss how they carry their supplier experiences from one organisation to the next, exploring how trusted partners earn lasting advocacy, how poor support during a critical incident creates enduring resistance, and why relationships built around mutual value can influence technology decisions for years.

Taking place during CyberSync, our 'Fringe' event alongside InfoSecurity Europe our participants in this episode are

Stuart Seymour - Group CSO and CISO, Virgin Media O2

Matt Adcock - CISO, Nielsen IQ

Nick Prescot - CISO, CyberKainos and Norgen

Host:  Max Sherwood, co-Founder of the Amigos Network

If you see yourself taking part in one of these discussions, ask us about our 2 AM Club Enabler Programme or join us during Black Hat Europe 8/9 December at Zero Sette Restaurant and Bar, ExCeL

What makes a CISO disengage from a vendor?

CISOs discuss the experiences that shape their perception of vendors and partners, revealing how support, accountability and performance during critical moments can influence future buying decisions long after an engagement ends.

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