The disappearance forty years ago of Harriet Vanger, a young scion of one of the wealthiest families in Sweden, gnaws at her octogenarian uncle, Henrik Vanger. He is determined to know the truth about what he believes was her murder. He hires crusading journalist Mikael Blomkvist, recently at the wrong end of a libel case, to get to the bottom of Harriet's disappearance. Lisbeth Salander, a twenty-four-year-old, pierced, tattooed genius hacker, possessed...

"Hired by companies to break into buildings and hack security systems, Jack and her husband, Gabe, are the best penetration specialists in the business. But after a routine assignment goes horribly wrong, Jack arrives home to find her husband dead. To add to her horror, the police are closing in on their suspect--her. Suddenly on the run and quickly running out of options, Jack must decide who she can trust as she circles closer to the real killer...

After hacking into the Warcross Championships' opening game to track illegal betting, bounty hunter Emika Chen is asked by the game's creator to go undercover to investigate a security problem, and she uncovers a sinister plot.

Sara Martinez is a hacker. She recently broke into the New York City foster care system to expose her foster parents as cheats and lawbreakers. However, instead of being hailed as a hero, Sara finds herself facing years in a juvenile detention facility and banned from using computers for the same stretch of time. Enter Mother, a British spy who not only gets Sara released from jail but also offers her a chance to make a home for herself within a secret...

"Teenage hacker Emika Chen embarks on a mission to unravel a sinister plot and is forced to join forces with a shadowy organization known as the Blackcoats"--Provided by the publisher.