Business Briefs: Facebook, Walmart, HQ Trivia

Facebook is calling on its users to help prevent data leaks. The company's new data abuse bounty program will reward people for reporting the misuse of information by app developers. The case has to concern at least 10,000 accounts and be unknown to Facebook. Users could receive anywhere from $500 to $40,000. This program is the first of its kind in the industry.

Walmart is making another big push into the grocery delivery space. The company will reportedly work with Postmates to grow its online delivery service, starting in Charlotte, North Carolina, with the goal of adding other U.S. cities. Last month, Walmart announced plans to expand its online grocery delivery business to 800 stores by the end of the year.

And trivia fans, get ready... The Rock is taking over HQ Trivia! On Wednesday, Dwayne Johnson will guest host the 3 p.m. hour of the popular live trivia app as part of the press tour for his upcoming film, "Rampage." The winners will split a pot of $300,000, the largest amount of money HQ Trivia has ever offered.