The IRS named Nancy Sieger its official CIO, a role she’s served in an acting capacity since June 2019.

Sieger oversees the hundreds of IT systems operating the U.S. tax infrastructure, as well as the nearly 7,000 employees maintaining them.

Not only are IRS systems — some of which are 40 to 50 years old — critical to processing millions of tax returns annually, but they’ve been leaned on to issue pandemic stimulus checks.

“Nancy has done an exemplary job as acting CIO supporting delivery of two rounds of Economic Interest Payments totaling more than $420 billion, along with individual tax refunds of more than $320 billion during the pandemic,” said IRS Commissioner Chuck Rettig in Tuesday’s announcement. “She is a remarkable person and enjoys tremendous support from our entire IT team and throughout the IRS.”

Prior to taking on the CIO role, Sieger was deputy CIO for filing season and tax reform in charge of making technology changes to modernize IT in compliance with the Tax Cuts and Jobs Act.

Sieger graduated from the IRS 2004 Executive Development Class, promotes workplace diversity and received a FedScoop 50 award for federal leadership.

Continuous Diagnostics and Mitigation (CDM) Program Manager Kevin Cox is leaving to become deputy chief information officer at the Department of Justice.

The Cybersecurity and Infrastructure Security Agency, which houses the CDM program, doesn’t have an announcement on Cox’s final day or replacement yet, according to a spokesperson.

Cox has been instrumental in steering the CDM program, as it helps civilian agencies adopt tools feeding cybersecurity risk data to agency and federal dashboards for maximum visibility across the enterprise.

“Kevin has done a tremendous job advancing the CDM program over the last four years,” said Eric Goldstein, executive assistant director for cybersecurity at CISA. “We are thankful for his service to CISA and continued service to the federal government.”

The move to DOJ is a return for Cox, who previously served as the department’s deputy chief information security officer.

MeriTalk first reported Cox’s pending departure from CISA.