Dialog Semiconductor (DLGS.DE) risks losing a crucial supply deal with Apple Inc (AAPL.O), according to a financial analyst who cut his rating on the stock on Tuesday, sending the Anglo-German chipmaker’s shares down by as much as one-third.Bankhaus Lampe reduced its rating on Dialog to “sell” from “hold” as it argued that Apple was working on its own battery-saving chip for the iPhone that could replace Dialog’s power management integrated circuits (PMIC) as early as 2019.Apple accounted for more than 70 percent of Dialog’s 2016 sales, analysts estimate. The German company says it is the world’s top maker of power management chips used in smartphones with roughly 20 percent of the market.Shares in Dialog fell as much as 36 percent on Tuesday to a seven-month low. They had more than doubled in the second half of 2016 on rising expectations for the iPhone 8 due out later in 2017.

An artificial intelligence program has beaten a team of six poker players at a series of exhibition matches in China.The AI system, called Lengpudashi, won a landslide victory and $290,000 (£230,000) in the five-day competition.It is the second time this year that an AI program has beaten competitive poker players.An earlier version of the program, known as Libratus, beat four of the world’s best poker pros during a 20-day game in January.The AI systems were the work of Tuomas Sandholm, a computer science professor at Carnegie Mellon University in the US, and PhD student Noam Brown.The prize money will go to Strategic Machine, a firm founded by the duo.The human team up against Lengpudashi was led by Yue Du, an amateur poker player who won the World Series of Poker $5,000 buy-in, no-limit, Texas Hold’em category last year.

It’s an unsafe Office environment.Two cybersecurity firms have uncovered vulnerabilities in Microsoft Office files that have allowed hackers to install malware through Word documents. The exploit — referred to as “zero day,” because it hasn’t yet been patched — works on all Microsoft Office versions, with attacks stretching back to late January, according to McAfee.The suite of programs, whoch incorporates Word, Excel and PowerPoint, is used by 1.2 billion people, according to Microsoft.Microsoft plans to issue an update Tuesday to address the vulnerability. Tuesday also is the day that the software giant launches its momentous Windows 10 Creators Update.”Meanwhile, we encourage customers to practice safe computing habits online,” a Microsoft spokesperson said in a statement, “including exercising caution before opening unknown files and not downloading content from untrusted sources to avoid this type of issue.”

A bug in Word apparently targeted by scammers trying to steal banking logins will be patched, Microsoft has said.The previously undetected, or “zero-day”, vulnerability had been reported over the weekend.Then, on 10 April, cybersecurity firm Proofpoint announced it had discovered an email campaign targeting the bug that aimed to distributed Dridex malware.Dridex is designed to infect a victim’s computer and snoop on banking logins.In 2015, it was cited as the means by whoch cyber-attackers stole more than £20m from British bank accounts.The flaw discovered in many versions of Microsoft Word for Windows could allow malicious software, including Dridex, to be installed, according to cybersecurity researchers.Microsoft did not confirm whether Mac versions of Word were also affected.