What is a CISO reporting line? Who the security chief reports to, defined

A CISO reporting line is the formal management relationship that names the executive or body the chief information security officer answers to, such as the chief information officer, the chief technology officer, the chief executive or a board committee. It decides who can filter security risk before it reaches the board, and whose budget the security program competes inside.

Why the line matters to a board

Neither the SEC's disclosure rule nor New York's financial-sector regulation prescribes a particular line. What they require is a channel to the top. New York's Part 500 makes the CISO of a covered firm report in writing at least once a year to the senior governing body, and report material cybersecurity issues to it, or to senior officers, in a timely way.

The SEC's Regulation S-K Item 106 asks public companies whether the people or committees responsible for cybersecurity risk report information about it to the board or a board committee. That is a reporting channel to directors, which a company can have under any management line.

Federal agencies made the opposite design choice and wrote it into law. The NIST glossary describes the senior agency information security officer, the federal CISO, as the official who carries out the chief information officer's responsibilities under the Federal Information Security Modernization Act (FISMA). The federal seat works through the CIO by design.

What the filings show

Companies describe their structure in Item 1C of Form 10-K, and the answers differ. HubSpot's annual report for 2023, filed on 14 February 2024, states that its CISO reports to the chief technology officer. SpartanNash's report for fiscal 2024, filed on 26 February 2025, places its information security function under the direction of the chief information officer. A director of cybersecurity and architecture leads it, assisted by an outside fractional CISO.

Many filings say nothing about the line. CISO Tribune read the governance disclosures in 22 companies' 10-K filings and found that most describe the CISO's existence and duties without saying whom the CISO reports to. The method and the companies are in Does the CISO report to the CIO?.

What it is not

The reporting line is not the same as board access. A CISO can sit under the CIO and still brief the audit committee directly. HubSpot's filing, for example, says its security team provides written reports to the audit committee, while the CISO's line runs to the CTO.

Where it appears on CISO Tribune

• Reporting lines report: the executive or body each company's own 10-K says its top cybersecurity role reports to, counted overall and by sector.
• Item 1C disclosures: the governance text of each filing, stored word for word and searchable by reporting line.
• Who should the CISO report to?: the trade-offs of each line.

Related terms

• Chief information security officer (CISO)
• Board cybersecurity oversight
• Regulation S-K Item 106