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Doximity at the New York Stock Exchange for their IPO, June 24, 2021.

Source: NYSE

Doximity, the medical website that’s used by more than 80% of U.S. doctors, is now trying to protect its millions of members after a spike in harassment that started during the Covid pandemic.

The 13-year-old company has introduced a free service called DocDefender that can scrub a physician’s personal contact information from the internet. The technology scans dozens of the most common websites where a doctor’s information might reside and automatically initiates the removal process.

Doximity’s platform, which for years was described as LinkedIn for doctors, allows health-care workers to stay current on medical news, manage paperwork, find referrals and carry out telehealth appointments with patients. Since the Covid pandemic broke out in 2020, health-care workers have faced elevated levels of harassment and violence due largely to the politicization of masking, social distancing and vaccine requirements.

Doximity says the new feature is all about giving peace of mind to doctors so they can feel safer in their personal and professional lives and can focus on providing better care.

Dr. Amit Phull, chief physician experience officer at Doximity, said the feature is a service that users wanted. In March, more than 200 doctors traveled to Doximity’s headquarters in San Francisco to help the company workshop new ideas for its platform. When executives presented DocDefender, they received a resounding standing ovation. 

“We’ve gotten positive feedback before,” Phull told CNBC in an interview. “That was a first for us.” 

Two months after the workshopping event, Doximity conducted a survey of more than 2,000 doctors and found that 85% of them worry about whether patients will access their personal information online. That number is higher within certain high-stress specialties like physical medicine and rehabilitation, neurology, emergency medicine and psychiatry.

Jeff Tangney, CEO, of Doximity at the New York Stock Exchange for their IPO, June 24, 2021.

Source: NYSE

Phull, who practices as a physician in emergency medicine, said he’s felt concerned about his safety many times throughout his career. He carried out his trauma training in Chicago, where he treated several victims of gang-related violence. Phull said he was often thrust in the middle of complex conflicts that were out of his control, and he worried that people would find him online and retaliate.  

“If you find yourself in one of those high-intensity situations, and outside of the scope of your practice that conflict still persists, that online element can be kind of scary,” he said.  

Since the onset of the pandemic, many patients have a shorter fuse. 

“I’ve been swung at by patients,” he said. “We certainly deal with a lot of hostility.”

Phull said that in testing the technology, he found details like his phone number, his relatives, his past and current addresses — and even a map to his old home on more than 25 websites. Now that he knows that information is being removed, Phull said he and his wife feel a little more comfortable.  

DocDefender users can monitor the removal process directly through Doximity’s interface, and they will receive regular follow-up reports about the status of their online presence. Additional scans will also be carried out periodically to identify any new listings. 

The service will be available to all doctors on Doximity starting Wednesday, and will expand to nurse practitioners and others over time. 

‘Opportunity to think very long term’

In addition to reaching more than 80% of U.S. doctors, Doximity says it’s also used by 50% of nurse practitioners and physician assistants. 

The platform verifies members to ensure that they’re practicing health-care professionals. Approved clinicians can use Doximity for free, as the company primarily generates revenue through its hiring, marketing and telehealth solutions.  

Doximity debuted on the New York Stock Exchange in June 2021, during the peak of the tech bull market. Its market cap climbed to $9.4 billion in its first day of trading, but has since fallen below $4 billion.

CEO Jeff Tangney, who co-founded Doximity in 2010, told CNBC the company is able to offer DocDefender for free in part because of its strong profit margins. 

“We just have the opportunity to think very long term and to invest in things that doctors really want, and that’s what we’re doing here,” he said.

Dr. Azlan Tariq, a physical medicine and rehabilitation doctor and the chief clinical officer at a  physiatry organization called Medrina, had early access to DocDefender.

Doximity CEO on physician social network going public: "Our mission is to help doctors be more productive"

PM&R physicians often deal with patients suffering chronic pain and are responsible for prescribing — and denying — medications like opioids. Around 96% of PM&R doctors reported feeling concerned about their online privacy in Doximity’s May survey.

Tariq said he’s taken steps to try and protect both his online identity and his physical safety, leaving social media sites like Facebook and taking down personal information elsewhere. He tries not to shop near his clinic to avoid disgruntled patients, and he said he’s always paying attention to his environment.

On one occasion, a patient was waiting for Tariq in the parking lot outside of his clinic. While the patient ultimately meant no harm, Tariq said he had to assume the worst. 

“You just think about exits. How can I get out of this?” he said. “Can I get back in the car? Can I get the door of the clinic and go behind? Those are just the normal behaviors.”

He added that some of his colleagues seriously consider carrying a gun. 

Since testing DocDefender, Tariq said he’s already noticed some of his personal information has been removed online, adding he feels a little more at ease.

Still, DocDefender doesn’t entirely remove the risk of being found. Dr. Jasdeep Gill, a psychiatrist, said there are some databases for Medicare and Medicaid that list doctors’ information, as well as websites that use their specific provider numbers. 

“Within the last two weeks, I’ve had two different people call my cell phone and request care, and I don’t know how they found my cellphone number,” said Gill, commenting that DocDefender is a step in the right direction to guard against this. “Trying to figure out how they got that information left me feeling just kind of uncomfortable.”

Gill works with patients, including some who are incarcerated, dealing with schizophrenia, bipolar disorder, depression and substance abuse. He said he started taking the risks more seriously after a patient made threats against him while he was in residency. 

Gill said he paid $20 a month for an information-removal service, but that process was “clunky” and “cumbersome.” He called Doximity’s tool a “really easy service to use” and sees it as a way for physicians to maintain the boundary between their professional and private lives. 

“Our background history of where we live, who we’re married to, what our cellphone numbers are, are things that are personal and that should be kept separate from the public’s view,” Gill said. “By creating that separation, it allows us to just do our jobs and focus on health care instead of worrying about safety.”

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How TikTok’s rise sparked a short-form video race

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How TikTok’s rise sparked a short-form video race

TikTok’s grip on the short-form video market is tightening, and the world’s biggest tech platforms are racing to catch up.

Since launching globally in 2016, ByteDance-owned TikTok has amassed over 1.12 billion monthly active users worldwide, according to Backlinko. American users spend an average of 108 minutes per day on the app, according to Apptoptia.

TikTok’s success has reshaped the social media landscape, forcing competitors like Meta and Google to pivot their strategies around short-form video. But so far, experts say that none have matched TikTok’s algorithmic precision.

“It is the center of the internet for young people,” said Jasmine Enberg, vice president and principal analyst at Emarketer. “It’s where they go for entertainment, news, trends, even shopping. TikTok sets the tone for everyone else.”

Platforms like Meta‘s Instagram Reels and Google’s YouTube Shorts have expanded aggressively, launching new features, creator tools and even considering separate apps just to compete. Microsoft-owned LinkedIn, traditionally a professional networking site, is the latest to experiment with TikTok-style feeds. But with TikTok continuing to evolve, adding features like e-commerce integrations and longer videos, the question remains whether rivals can keep up.

“I’m scrolling every single day. I doom scroll all the time,” said TikTok content creator Alyssa McKay.

But there may a dark side to this growth.

As short-form content consumption soars, experts warn about shrinking attention spans and rising mental-health concerns, particularly among younger users. Researchers like Dr. Yann Poncin, associate professor at the Child Study Center at Yale University, point to disrupted sleep patterns and increased anxiety levels tied to endless scrolling habits.

“Infinite scrolling and short-form video are designed to capture your attention in short bursts,” Dr. Poncin said. “In the past, entertainment was about taking you on a journey through a show or story. Now, it’s about locking you in for just a few seconds, just enough to feed you the next thing the algorithm knows you’ll like.”

Despite sky-high engagement, monetizing short videos remains an uphill battle. Unlike long-form YouTube content, where ads can be inserted throughout, short clips offer limited space for advertisers. Creators, too, are feeling the squeeze.

“It’s never been easier to go viral,” said Enberg. “But it’s never been harder to turn that virality into a sustainable business.”

Last year, TikTok generated an estimated $23.6 billion in ad revenues, according to Oberlo, but even with this growth, many creators still make just a few dollars per million views. YouTube Shorts pays roughly four cents per 1,000 views, which is less than its long-form counterpart. Meanwhile, Instagram has leaned into brand partnerships and emerging tools like “Trial Reels,” which allow creators to experiment with content by initially sharing videos only with non-followers, giving them a low-risk way to test new formats or ideas before deciding whether to share with their full audience. But Meta told CNBC that monetizing Reels remains a work in progress.

While lawmakers scrutinize TikTok’s Chinese ownership and explore potential bans, competitors see a window of opportunity. Meta and YouTube are poised to capture up to 50% of reallocated ad dollars if TikTok faces restrictions in the U.S., according to eMarketer.

Watch the video to understand how TikTok’s rise sparked a short form video race.

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Elon Musk’s xAI Holdings in talks to raise $20 billion, Bloomberg News reports

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Elon Musk's xAI Holdings in talks to raise  billion, Bloomberg News reports

The X logo appears on a phone, and the xAI logo is displayed on a laptop in Krakow, Poland, on April 1, 2025. (Photo by Klaudia Radecka/NurPhoto via Getty Images)

Nurphoto | Nurphoto | Getty Images

Elon Musk‘s xAI Holdings is in discussions with investors to raise about $20 billion, Bloomberg News reported Friday, citing people familiar with the matter.

The funding would value the company at over $120 billion, according to the report.

Musk was looking to assign “proper value” to xAI, sources told CNBC’s David Faber earlier this month. The remarks were made during a call with xAI investors, sources familiar with the matter told Faber. The Tesla CEO at that time didn’t explicitly mention any upcoming funding round, but the sources suggested xAI was preparing for a substantial capital raise in the near future.

The funding amount could be more than $20 billion as the exact figure had not been decided, the Bloomberg report added.

Artificial intelligence startup xAI didn’t immediately respond to a CNBC request for comment outside of U.S. business hours.

Faber Report: Elon Musk held call with current xAI investors, sources say

The AI firm last month acquired X in an all-stock deal that valued xAI at $80 billion and the social media platform at $33 billion.

“xAI and X’s futures are intertwined. Today, we officially take the step to combine the data, models, compute, distribution and talent,” Musk said on X, announcing the deal. “This combination will unlock immense potential by blending xAI’s advanced AI capability and expertise with X’s massive reach.”

Read the full Bloomberg story here.

— CNBC’s Samantha Subin contributed to this report.

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Alphabet jumps 3% as search, advertising units show resilient growth

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Alphabet jumps 3% as search, advertising units show resilient growth

Alphabet CEO Sundar Pichai during the Google I/O developers conference in Mountain View, California, on May 10, 2023.

David Paul Morris | Bloomberg | Getty Images

Alphabet‘s stock gained 3% Friday after signaling strong growth in its search and advertising businesses amid a competitive artificial intelligence environment and uncertain macro backdrop.

GOOGL‘s pace of GenAI product roll-out is accelerating with multiple encouraging signals,” wrote Morgan Stanley‘s Brian Nowak. “Macro uncertainty still exists but we remain [overweight] given GOOGL’s still strong relative position and improving pace of GenAI enabled product roll-out.”

The search giant posted earnings of $2.81 per share on $90.23 billion in revenues. That topped the $89.12 billion in sales and $2.01 in EPS expected by LSEG analysts. Revenues grew 12% year-over-year and ahead of the 10% anticipated by Wall Street.

Net income rose 46% to $34.54 billion, or $2.81 per share. That’s up from $23.66 billion, or $1.89 per share, in the year-ago period. Alphabet said the figure included $8 billion in unrealized gains on its nonmarketable equity securities connected to its investment in a private company.

Adjusted earnings, excluding that gain, were $2.27 per share, according to LSEG, and topped analyst expectations.

Read more CNBC tech news

Alphabet shares have pulled back about 16% this year as it battles volatility spurred by mounting trade war fears and worries that President Donald Trump‘s tariffs could crush the global economy. That would make it more difficult for Alphabet to potentially acquire infrastructure for data centers powering AI models as it faces off against competitors such as OpenAI and Anthropic to develop largely language models.

During Thursday’s call with investors, Alphabet suggested that it’s too soon to tally the total impact of tariffs. However, Google’s business chief Philipp Schindler said that ending the de minimis trade exemption in May, which created a loophole benefitting many Chinese e-commerce retailers, could create a “slight headwind” for the company’s ads business, specifically in the Asia-Pacific region. The loophole allows shipments under $800 to come into the U.S. duty-free.

Despite this backdrop, Alphabet showed steady growth in its advertising and search business, reporting $66.89 billion in revenues for its advertising unit. That reflected 8.5% growth from the year-ago period. The company reported $8.93 billion in advertising revenue for its YouTube business, shy of an $8.97 billion estimate from StreetAccount.

Alphabet’s “Search and other” unit rose 9.8% to $50.7 billion, up from $46.16 billion last year. The company said that its AI Overviews tool used in its Google search results page has accumulated 1.5 billion monthly users from a billion in October.

Bank of America analyst Justin Post said that Wall Street is underestimating the upside potential and “monetization ramp” from this tool and cloud demand fueled by AI.

“The strong 1Q search performance, along with constructive comments on Gemini [large language model] performance and [AI Overviews] adoption could help alleviate some investor concerns on AI competition,” Post wrote in a note.

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CNBC’s Jennifer Elias contributed to this report.

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