Her father was a quarterback at , and her mother was involved in figure skating and high school sports.
She placed second in the all-around competition with a two-day combined score of 115.
More and more services are starting to enable two-factor security measures.
In March, Maroney competed at the City of Jesolo Trophy in Jesolo, Italy.
Her rapid transformation has led many people to think about what must be going through her head.
Olympic gold medal gymnast McKayla Maroney says Larry Nassar, the disgraced team doctor convicted of sexually assaulting former patients, molested her hundreds of times over a period of five years.