Senate Bill 400 aims to establish restrictions on the use of electronic devices owned, operated, or leased by state agencies or local governmental units in Wisconsin. Under this bill, officials, employees, or contractors of these entities, with the exception of law enforcement officers acting in their official capacity, are prohibited from downloading, using, or accessing social media applications or software owned by entities located in designated "foreign countries of concern." These countries include China, Cuba, Iran, North Korea, Russia, and Venezuela under the Maduro regime.

The bill also allows for exemptions, permitting officials, employees, or contractors to obtain a written waiver from the secretary of administration for specific duties related to their work. The secretary has the discretion to issue these waivers. The new legal language created under this bill is codified in section 20.932 of the statutes, which defines key terms and outlines the use restrictions.