[3] CNA provides property and casualty insurance products and services for businesses and professionals in the U.S., Canada, Europe and Asia.

[2] The purpose of the company was to provide accident and health insurance to railroad industry employees.

Over the years, CNA covered the Indianapolis 500, the World Boxing Association, the Peking Opera, the Blue Angels, and various actors and movie projects.

In the 1960s, CNA covered the Beatles concert in the event of inclement weather at Shea Stadium.

With the sale of this division came the end of CNA's long history as a multi-line insurer.

(Source: Insurance Journal) In 2011, CNA introduced the Customer Segment strategy, focusing on key customer segments — construction, financial institutions, healthcare, manufacturing, professional services, real estate (2014), technology and small business — and specialized monoline insurance products.

[11] In February 2020, CNA announced the appointment of Al Miralles as the executive vice-president and chief financial officer.

CNA paid more than $40 million in late March to regain control of its network after the ransomware attack.