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"What helped investigators bring suit against Enron, Merck’s Vioxx medication, and the BTK serial killer? Digital evidence taken from an individual’s computer or corporate network—web pages, pictures, documents, and e-mails are part of a relatively new science called digital forensics. Digital-forensics software safeguards electronic evidence used in investigations by creating a duplicate of a hard drive that an investigator can search by keyword, file type, or access date. Digital forensics is also evolving into areas such as cloud computing and blockchain technology. For instance, it is estimated that as much as 3.9 million of the original 21 million bitcoins are “lost” on hard drives confined to landfills and flash drives located in the back of old office desks. But nowadays digital sleuthing is not limited to law enforcement. Companies such as Walmart, Target, and American Express have their own secret in-house digital forensics teams. And what if you’re in New York and need to seize a hard drive in Hong Kong? No problem. Over 75 members of the Fortune 500 now use technology that allows them to search hard drives remotely over their corporate networks. Digital forensics makes it possible to track down those who steal corporate data and intellectual property. Broadcom, a semiconductor chip designer, used computer forensics to investigate and apprehend former employees who were attempting to steal trade secrets. In the process, Broadcom gathered incriminating e-mails, including deleted documents, that gave it solid evidence to use the 2013 Federal Computer Fraud and Abuse Act to stop the former employees from starting up a rival firm. However, there is a downside to having these advanced capabilities. If this kind of software falls into the wrong hands, sophisticated hackers could access corporate networks and individual computers as easily as taking candy from a baby—and the victims would not even know it was happening. In an age of corporate wrongdoing, sexual predators, and computer porn, your hard drive will tell investigators everything they need to know about your behavior and interests, good and bad. Cybersleuthing means we are all potential targets of digital forensics. As evidenced by the huge increase in identity theft, personal privacy—once an unassailable right—is no longer as sacred as it once was."