Comedian Ari Shaffir performs at the 2015 Bonnaroo Music and Arts Festival in June in Manchester, Tenn. Shaffir has said fellow comedian Carlos Mencia stole his joke about who would build a fence on the U.S.-Mexican border. Copyright on jokes is difficult to prove, and it turned out two other comedians had made similar jokes as well. John Davisson/Invision/AP hide caption

itoggle caption John Davisson/Invision/AP

Greg Gianforte is distributing a brochure urging workers to "come home to Montana" and telework from there. Marianne Wiest/BetterMontanaJobs.com hide caption

itoggle caption Marianne Wiest/BetterMontanaJobs.com

To selfie, or not to selfie? iStockphoto hide caption

itoggle caption iStockphoto

A security gap on Android, the most popular smartphone operating system, was discovered by security experts in a lab and is so far not widely exploited. iStockphoto hide caption

itoggle caption iStockphoto

Wall graffiti at Facebook headquarters in Menlo Park, Calif. The company released a diversity report last month showing that 70 percent of employees are male; African-Americans comprise 2 percent of it workforce. Robyn Beck/AFP/Getty Images hide caption

itoggle caption Robyn Beck/AFP/Getty Images

The Harwell Dekatron Computer in Bletchley Park is one of the massive machines used by Matt Parker in his Imitation Archive music. Courtesy of the National Museum of Computing hide caption

itoggle caption Courtesy of the National Museum of Computing

A helicopter flies near the Lake Fire in California's San Bernardino National Forest on June 19. Firefighters mobilized to combat the wildfire from the air, but they had to be grounded to avoid drones in the area. David McNew/Reuters/Landov hide caption

itoggle caption David McNew/Reuters/Landov

The Naval Posgraduate School's Timothy Chung stands with the unmanned aerial vehicles his team attempted to swarm in May, 2015. That day they were able to launch 20 into a swarm. After a second attempt in July, they got 30. Krista Almanzan/KAZU hide caption

itoggle caption Krista Almanzan/KAZU

Security experts' and non-experts' top security practices, according to Google's survey. Google Online Security Blog hide caption

itoggle caption Google Online Security Blog

Mark Cuban, left, as President of the United States, faces killer sharks with Ian Ziering in the Syfy film Sharknado 3: Oh Hell No! The Global Asylum/Syfy hide caption

itoggle caption The Global Asylum/Syfy

A maintenance airman inspects an MQ-9 Reaper, a high-speed, high-altitude drone, in Afghanistan. National Guard units are beginning to pilot these unmanned aircraft that can conduct intelligence, surveillance and reconnaissance missions. U.S. Air Force hide caption

itoggle caption U.S. Air Force

Kelly Hirano, vice president of engineering, demonstrates the Yahoo Sports Daily Fantasy contest during a product launch in July in San Francisco. Yahoo has designed this experience for the mobile fantasy player and offers Daily Fantasy, Full Season Fantasy, and real-time sports news and scores as an all-in-one experience. Eric Risberg/AP hide caption

itoggle caption Eric Risberg/AP

Chris Valasek (left) and Charlie Miller talk about hacking into vehicle computer systems during the Black Hat USA 2014 hacker conference in Las Vegas last August. Steve Marcus/Reuters/Landov hide caption

itoggle caption Steve Marcus/Reuters/Landov

The rise of ad blockers threatens the business model that drives much of the Internet economy. Danae Munoz/Ikon Images/Getty Images hide caption

itoggle caption Danae Munoz/Ikon Images/Getty Images