Technology

Bot or not? Mystery over anonymous user retweeted by Trump
While anonymity on Twitter allows people in oppressive communities to speak freely, it can also allow people to harass others or spread bogus claims without accountability. The user identifies as a California Trump supporter named Sophia, but has changed the name three times since Trump's retweet on Friday. The account was briefly suspended by Twitter on Monday, but Twitter says it was a mistake.
U.S. astronaut sets record for longest spaceflight by a woman
A U.S. astronaut set a record Saturday for the longest single spaceflight by a woman, breaking the old mark of 288 days with about two months left in her mission.
Researcher: Data on 267 million Facebook users exposed
A Ukrainian security researcher says a database with the names, phone numbers and unique user IDs of more than 267 million Facebook users was exposed on the open internet for at least 10 days this month.
On census, Facebook and Instagram to ban disinformation and false ads
Under pressure to prepare for 2020 census interference, Facebook says content misrepresenting who can participate and the data the government collects will be banned from its social media platforms.
Hidden recording devices found in student rooms at hotel
A Wisconsin school district has put a staff member on leave after some students from Madison East High School found recording devices in their hotel rooms during a field trip to Minneapolis.
Tinder lets known sex offenders use the app. It’s not the only one
Match Group, which owns most major online dating services, screens for sexual predators on Match — but not on Tinder, OkCupid or PlentyofFish. A spokesperson said, “There are definitely registered sex offenders on our free products.”
A 'mole' isn't digging Mars, and NASA engineers are trying to find out why
After equipment carried by the InSight lander had trouble drilling a sophisticated thermometer into the Martian surface, a Plan B also didn't work — and the instrument ended up backing itself out of the ground.