Artificial Intelligence May Not ‘Hallucinate’ After All

Thanks to advances in machine learning, computers have gotten really good at identifying what’s in photographs. They started beating humans at the task years ago, and can now even generate fake images that look eerily real. While the technology has come a long way, it’s still not entirely foolproof. In particular, researchers have found that image detection algorithms remain susceptible to a class of problems called adversarial examples. Adversarial examples are like optical (or audio) illusions for AI. By altering a handful of pixels, a computer scientist can fool a machine learning classifier into thinking, say, a picture of a rifle is actually one of a helicopter. But to you or me, the image still would look like a gun—it …

Hack Brief: Hackers Stole $40 Million from Binance Cryptocurrency Exchange

Binance is one of the world’s biggest cryptocurrency exchanges. As of Tuesday, it’s now also the scene of a major cryptocurrency theft. In what the company calls a “large-scale security breach,” hackers stole not only 7,000 bitcoin—equivalent to over $40 million—but also some user two-factor authentication codes and API tokens. Theft has long been endemic to cryptocurrency; hackers stole more than $356 million from exchanges and infrastructure in the first three months of 2019 alone, according to a recent report from blockchain intelligence company Ciphertrace. But it’s less common to see an established exchange like Binance get hacked—and for the attackers to get so much other information along the way. The Hack Binance has been fairly forthcoming about the hack, …

Hacktivists Are on the Risebut Less Effective Than Ever

In the United States, the public discourse has lately centered around nation-state disinformation campaigns much more than hacktivism. But internationally, dramatic or destructive digital acts that call attention to particular issues continue to simmer—and boiled over in the lead-up to the ouster of longtime Sudanese dictator Omar al-Bashir. The #OpSudan effort did not directly lead to al-Bashir's arrest. But it's one of several recent campaigns that show how hacktivists can ride the waves of burgeoning geopolitical movements and garner legitimacy within their communities. "There has been an increase in hacktivism in general in the first quarter of 2019," says Adam Meyers, vice president of intelligence at the security firm Crowdstrike. "We did see quite a bit of geopolitically motivated hacktivism—Venezuela, …