This morning on the Wire: Wednesday, October 14

LinkedIn post · October 12, 2026

Diana Kelley, Chief Information Security Officer (CISO) at Noma Security

On a security leadership topic

Podcast appearance · tprmpodcast.com · October 6, 2026

Sean Cassidy, Chief Information Security Officer (CISO) at Plaid

On the limitations of conventional security best practices

LinkedIn post · October 8, 2026

Stephen Barnham, Group Chief Information Officer, Group Chief Digital Officer and Group Chief Information Security Officer at Daiichi Life Group

On personal and professional support throughout life's journey

GuidePublished October 13, 2026

CISO Glossary: Cybersecurity and Governance Terms, Defined

37 terms a security leader needs on the record: core threat and defense vocabulary from CISA's NICCS glossary, plus the NIST CSF 2.0 Functions and the SEC's materiality test, each sourced to the primary document.

GuideUpdated October 13, 2026

CISO First 90 Days: A Week-by-Week Plan for a New Security Leader

What to do in the first 90 days as a new CISO, structured around NIST's Cybersecurity Framework functions and CISA's baseline security practices: assess before you buy, build a risk register boards can read, then report.

GuideUpdated October 13, 2026

SEC Item 1.05 Materiality Decision Guide: Is This Incident Reportable?

A step-by-step decision aid for the SEC's Item 1.05 materiality call: the reasonable-investor test, why discovery does not start the four-business-day clock, and when an incident belongs under Item 8.01 instead. Not legal advice.

GuideUpdated October 13, 2026

What Does a CISO Do? Responsibilities, Reporting Lines and Required Skills

A CISO owns an organization's cybersecurity risk end to end: strategy, the security program, incident response and the board conversation. Sourced to NIST, CISA, Okta, Splunk and IANS Research.