HARRISBURG - The Pennsylvania attorney general said Wednesday his agency has begun looking into a breach of COVID-19 contact tracing data that may have compromised private information of some 72,000 people."Any allegations of sensitive personal information being mismanaged or leaked is a serious matter," Attorney General Josh Shapiro, a Democrat, said in a written statement. "My office has opened investigations into this data breach on multiple fronts, and as such we will have no further comment at this time."The state Health Department disclosed two weeks ago that employees of a contact tracing vendor ignored security rules and created unauthorized documents outside the state’s secure computer systems.MORE: Contact tracing breach impacts.