Nvidia Shares Fall as AI Chip Giant Fails to Meet Investor Expectations - 1

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Nvidia Shares Fall as AI Chip Giant Fails to Meet Investor Expectations

  • Written by Andrea Miliani Former Tech News Expert
  • Fact-Checked by

Nvidia Corporation shares fell 6% after-hours in New York despite hitting revenue records and doubling its sales. According to the BBC , the AI chipmaker announced record revenues of $30bn, surpassing the expected revenues of $28.7bn and increasing sales by 122% compared to the previous year.

However, according to the data shared, that impressive growth is starting to slow down. “If you’re going to raise expectations that high then you’ve got to keep growing at spectacular rates,” said Simon French, head of research at Panmure Liberum, to the BBC.

Nvidia had been building high expectations in the past few months. They announced a new affordable generation of AI chips in March , called Blackwell, and in July it was revealed that the company has been working on a new flagship model for the Chinese market . However, investors were expecting more groundbreaking results during this last quarterly results.

“Markets expect them to be shattered, and it’s the scale of the beat today that looks to have disappointed a touch,” said Matt Britzman, senior equity analyst at Hargreaves Lansdown, to the BBC.

According to Mr. French, the new generation of AI chips ”has faced some production delays, and that perhaps is one of the reasons why Wall Street after hours sold off the stock.”

Nvidia shared samples of the new Blackwell chip and has been working on it to make it more efficient during this past quarter. According to CNBC , the company expects to sell it soon and make several billion dollars in the fourth quarter this year.

Nvidia keeps successfully selling its Hopper AI Chips, an older generation, and producing products for the gaming market—the company’s former main target. Now that the company has gained popularity in the AI industry, its AI chips have become the main reference. However, more chipmakers have jumped into the AI market as well which is also part of the investors’ concerns.

Hackers Could Take Control Of Your Bike’s Gears - 2

Creator: E Bike Advanced Technologies GmbH

Hackers Could Take Control Of Your Bike’s Gears

  • Written by Kiara Fabbri Former Tech News Writer
  • Fact-Checked by Justyn Newman Former Lead Cybersecurity Editor

Security researchers discover critical vulnerabilities in wireless bicycle gear-shifting technology, as reported today by Forbes .

A team of researchers from Northeastern University and UC San Diego reported that gears can be changed or jammed from as far as 32 feet away. By exploiting vulnerabilities in the gear-shifting system, attackers could interfere with cyclists’ ability to control their bikes.

Forbes reported that this could allow attackers to remotely control a cyclist’s gears, potentially causing accidents or giving them an unfair advantage in competitions.

The researchers focused on Shimano Di2 wireless gear-shifting technology, a popular choice among professional cyclists. They found that the system lacks sufficient security measures to prevent replay attacks and jamming. This means that attackers could capture and retransmit gear-shift commands or disable gear-shifting completely.

The researchers point out that the bicycle industry is increasingly adopting wireless gear-shifting technology due to its performance and design benefits.

The researchers found three main security problems with the bike-shifting system. Firstly, hackers can record gear-shifting commands and play them back later to trick the bike into shifting gears without the rider’s input.

Secondly, hackers can use special equipment to block the communication between the rider’s control and the bike, preventing the bike from shifting gears. Finally, they can intercept the wireless communication between the bike and the rider’s control to gather information about the bike’s speed, gear, and other data.

The researchers suggest several strategies to protect the system from hacking. For example, adding timestamps to signals can prevent old messages from being used, but this requires the devices to be perfectly synchronized, which isn’t always easy.

Another approach they suggest is using rolling codes, where each signal has a one-time-use code. This makes it harder for hackers to intercept and reuse commands. They state that this method is commonly used in car key fobs and could be beneficial here as well.

Additionally, they suggest limiting the range at which commands are accepted can prevent remote attacks by ensuring only nearby signals are allowed. However, Shimano’s system doesn’t seem to include the protections above, leaving it vulnerable to attacks.

Forbes reports that the researchers have disclosed their findings to Shimano. The company has not yet provided a public statement. However, it has confirmed that it is working to address the vulnerabilities.