Hackers send cryptocurrency exchange offline with DDoS attacks

Someone is disrupting cryptocurrency exchanges with Distributed Denial of Service attacks, with both Bitfinex and OKEx hit in the past 24 hours. “I was not aware of the attack against OKEx yesterday. I’m interested to understand similarities,” tweeted Bitfinex CTO Paulo Ardoino. “We’ve seen a level of sophistication that means a deep preparation from the attacker.” Seems…

Robot uses AI to personalize teaching of autistic children

Researchers have developed a new personalized learning robot for autistic children that uses machine learning to adapt its lessons to each kid’s changing needs. The University of Southern California team put a “socially assistive robot” called Kiwi in the homes of 17 autistic children and set the two-foot-tall, green-feathered robot to give each child personalized classes. Over the course of…

Virgin Galactic keeps bleeding cash — but says demand for spaceflights has doubled

Virgin Galactic’s latest earning reports confirmed it still doesn’t make any money. But, eager space nerds looking to be shot into (sub)orbit by Richard Branson can now pay a $1,000 deposit, so that’s something. The Mojave-based firm only made $529,000 revenue last quarter, leading to a loss of $55 million, higher than analysts anticipated. The quarter previous…