CISO Tribune

Executive record

Dennis Dayman

CISO Tribune executive record: Dennis Dayman, CISO at Code42

Career profile: Dennis Dayman on CISO Spotlights ↗

Dennis Dayman was named Chief Information Security Officer at Code42. The appointment was announced on March 26, 2024, per GlobeNewswire.

Before the appointment: Resident CISO at Proofpoint, per the same source.

The record holds no later verification of the seat.

1 tracked move on the Wire · Updated

Career timeline

Every move the record holds for Dennis Dayman, newest first, with the earlier roles the announcements name.

  1. · Appointment

    Named Chief Information Security Officer at Code42

    Source: GlobeNewswire (company announcement) ↗ · Move record

  2. Before March 2024· Earlier role

    Resident CISO at Proofpoint

    Named in the announcement of the Code42 appointment · Source: GlobeNewswire (company announcement) ↗

The appointment

Announced March 26, 2024 · Source: GlobeNewswire (company announcement) ↗ · Move record

Code42 announced the appointment of Dennis Dayman as Chief Information Security Officer. Dayman previously served as Resident CISO for Proofpoint and held Chief Privacy and Security Officer positions at Maropost, Return Path, and Eloqua.

According to the release, Dayman is responsible for security operations, incident response, global risk and compliance, and the management of internal and external threats. The release says he joins the Code42 executive team to drive its strategy for information security and IT risk management.

The company says Dayman has more than 25 years of experience across privacy, data governance and cybersecurity, including experience in leadership at global organizations. According to the release, he also served, at the time of the announcement, as Chair of the Policy Subcommittee on the U.S. Department of Homeland Security Data Privacy and Integrity Advisory Committee. The release says that role involves giving technological, operational and policy advice on issues within DHS relating to data privacy and data integrity.

According to the release, Code42 works in the field of insider threat and data loss protection. The company says its Code42 data protection is native to the cloud, detects theft, leak, loss and exposure of data, and speeds incident response. The company says its data protection solution can be configured for PCI, HIPAA, GDPR and other compliance frameworks and is FEDRAMP-authorized.

According to the company, Code42 was founded in 2001, is backed by Split Rock Partners, NewView Capital, JMI Equity and Accel Partners, and has its headquarters in Minneapolis, Minnesota. The company says Code42 counts itself among the founding members of the Insider Risk Community. The company says it maintains several offices across the United States and that its clients include Lyft, Okta and CrowdStrike.

The company: Code42

Company record
Who runs security at Code42: 1 confirmed move on the record
Vendor directory
Code42 sells security products, filed under Insider risk management. What it sells

Appointed in the same period

Other security chiefs in Cybersecurity Vendors whose appointment was announced within 90 days of Dennis Dayman's, nearest first (8 of 12). The Cybersecurity Vendors bench

Record facts

Moves on the record
1 confirmed move, each with its source
On the record since
September 30, 2026

Questions about Dennis Dayman

When did Dennis Dayman become CISO of Code42?
The appointment was announced on March 26, 2024, per GlobeNewswire. The record holds the announcement, not a start date.
Is Dennis Dayman still the CISO of Code42?
The newest source the record holds for this seat is the appointment announced on March 26, 2024. It holds no later verification, so it does not state who holds the seat today.
Where did Dennis Dayman work before Code42?
Before the appointment, Dennis Dayman was Resident CISO at Proofpoint, according to the announcement (GlobeNewswire).

Sources

  1. 1.GlobeNewswire (company announcement) ↗: the appointment at Code42, March 26, 2024
  2. 2.CISO Spotlights career profile ↗: a fuller career profile on a sister site

This record begins with CISO Tribune's tracking in 2026.

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