Veterans Affairs has not fully responded to questions from Congress about data breaches dating back almost two years.
The VA's inspector general has rejected the department secretary's plan to provide answers to long-outstanding questions.
House committee questions timing, details of CIO Stephen Warren's recent title changes.
The House Veterans Affairs Committee has directed six formal inquiries to VA's Office of Information and Technology since Oct. 23, totaling more than 100 questions concerning routine IT security practices.
Top IT official says VA has good track record for protecting data considering the volume of information it handles.
Lawmakers remain skeptical of agencies' work on shared electronic health records.
Testimony from officials and a forthcoming IG report paint a picture of inconsistent security measures that left veterans' personal data and medical records vulnerable, although some recent improvements have been made.
Executive Editor Troy K. Schneider discusses the reader comments to our story on IT troubles at the Department of Veterans Affairs.
The Integrated Electronic Health Record program is not the Department of Veterans Affairs' only lightning rod, but it is a major one.
In an increasingly high-profile morass, the Veterans Affairs Department's tech troubles are only growing worse. Most recently, several key leaders have stepped down while the integrated health record effort stalls and a massive claims backlog remains unresolved.
Officials pin their hopes for an easing of the claims logjam on new systems.
At least three people are rumored as likely to replace departing VA CIO Roger Baker. CTO Peter Levin, also stepping down, leaves another leadership role to be filled.