Jensen Huang has resigned as President, Chief Executive Officer, and a member of the Board at NVIDIA (NASDAQ: NVDA). Colette Kress, current Executive Vice President and Chief Financial Officer of NVIDIA, will serve as Interim Chief Executive Officer. The Board is initiating a search for a permanent Chief Executive Officer and will consider internal and external candidates.

Sean Sweeney has become Chief Information Officer (CIO) of the City of Charleston, South Carolina. Previously, Sweeney led security operations and security trust and response at Oracle, was a security advisor at Microsoft and CISO at the University of Pittsburgh, and held leadership technology and security positions at Litigation Management Group and Burns White LLC.

Commerce has appointed Amalie Combs as Chief Information Security Officer (CISO). Previously, Combs served as deputy CISO at Corebridge Financial and in cybersecurity leadership roles at Bank of the West and Omaha Public Power District.

Peter Polizzi has been named President and Chief Operating Officer (COO) of Torq. A GTM Advisor at IVP, Polizzi previously served as SVP at IBM, HashiCorp, and Splunk; VP at Palo Alto Networks; executive VP at Ribbon Communications; VP at Avaya; and in leadership positions at Motorola Solutions and Oracle.

MDR provider Expel has appointed Steve Kelley as Board Chairman and Chief Executive Officer (CEO). Previously, Kelley led Bitdefender’s Business Solutions Group, was CEO at EdgeWave and CMO at Trustwave (acquired by Singtel), and advised the creation of MSSP giant LevelBlue (formerly known as AT&T Cybersecurity).

Tal Kapulnik has been appointed Chief Marketing Officer (CMO) at Terra Security. Previously, Kapulnik served as VP of marketing at Eon.io, director of marketing at Lemonade, and held various marketing roles at YouTube and Edelman.

Cloudflare has appointed Christian Smith as President of Revenue. Previously, Smith served as senior VP and CRO at Splunk and led its commercial business after Splunk was acquired by Cisco. He was also CRO at Nintex and held leadership roles at Oracle.

Doran Stienike has been appointed Chief Information Officer (CIO) at Presidio. Previously, Stienike served as CIO and CISO at CSG International and held CISO and technology leadership roles at ConAgra Foods.

Checkmarx has named Kobi Sivilya as Chief Information Security Officer (CISO). Previously, Sivilya served as VP of security engineering and IT at Fireblocks, CISO and VP of IT at Outbrain, and in various positions at Schema and Siemens.

US cybersecurity agency CISA has named Brian Bonacci as Executive Assistant Director (EAD) for Emergency Communications and Brian Mazanec as Acting EAD for Infrastructure Security. Most recently, Bonacci served as senior counselor for the DHS and as chief of staff at CISA. A professor at George Mason University and Missouri State University, Mazanec previously led preparedness for HHS’s Administration for Strategic Preparedness and Response (ASPR).

Jeremy Rosenberg has become Chief Information Security Officer (CISO) at Massachusetts Institute of Technology (MIT). Previously, Rosenberg served as assistant VP for IT and CISO at Yale University and as CISO at University of California, Berkeley, and was a member of Brookhaven National Laboratory’s cybersecurity IT audit committee.

Keyfactor has named Gerald Beuchelt as Chief Information Security Officer (CISO). A cybersecurity advisor and consultant, Beuchelt previously served as CISO at Acronis, Sprinklr, and LogMeIn, and CSO at Demandware. He also served on the board of the National Cyber Security Alliance and as principal information security engineer at MITRE.

DNS-first security company DNSFilter has announced the appointment of Justin Foster as Chief Technology Officer (CTO). Most recently, Foster served as CTO at Forescout. Previously, he co-founded and served as CTO at Cysiv (acquired by Forescout), and held various positions at Trend Micro and Third Brigade.

Don Jeter has joined Abnormal AI as Chief Marketing Officer (CMO). Jeter joins the behavioral AI security company from Torq, where he served as CMO. Prior to Torq, Jeter held senior marketing roles at Symantec and Veritas Technologies, and led global marketing at Pax8.

Rob T. Lee has joined Dragos as Chief AI Officer. Lee joins the industrial cybersecurity firm from SANS Institute, where he spent more than 25 years developing and teaching security courses and most recently led the institute’s AI work. He reports to Dragos Founder, Chairman, and CEO Robert M. Lee.

Barracuda has appointed Dan Fletcher as Chief Financial Officer (CFO). A board member at Gappify and LivePerson and a principal at Vector Capital Management, Fletcher previously served as CFO at Planful and MarkLogic.