Think twice before sending your next text message. Or better yet, make sure you are using an end-to-end encryption method.
Consumers regularly use different types of messaging technology from the biggest technology companies including Apple, Alphabet and Meta Platforms, including iMessage, Google Messages, WhatsApp and SMS, but the level of protection varies. Now, the U.S. government is expressing greater concern after a recent massive hack of the nation’s largest telecom companies.
Last month, the Cybersecurity and Infrastructure Security Agency and the Federal Bureau of Investigation revealed a campaign by hackers associated with China, Salt Typhoon, that compromised AT&T and Verizon, and others, and was one of the largest hacks of U.S. infrastructure in history. Following that warning, CISA, the National Security Agency, the FBI and international partners published a joint guide to help protect Americans. One suggestion is to use end-to-end encryption, a method that makes communications more secure.
End-to-end encryption helps ensure that only the intended recipients can read your messages as they travel between your phone and another person’s phone. Secure messaging apps use end-to-end encryption to protect communications from hackers, surveillance and unauthorized access, so even messaging app providers can’t read your messages.
“All things being equal, if you have the opportunity to use a platform that’s end-to-end encrypted, you should,” said Michael Hughes, chief business officer of Duality Technologies, which allows organizations to share and analyze sensitive data using encryption.
Many consumers don’t know their options for communicating securely over messaging apps. Here are the basics.
WhatsApp, Signal among best end-to-end options
Consumers use different messaging apps for various purposes, often without giving a second thought to security. However, there are notable differences among platforms that people need to be aware of.
From a security perspective, free messaging apps like Meta’s WhatsApp and Signal — whose co-founder was one of the creators of WhatsApp — are considered the best because end-to-end encryption is built in. That makes these apps highly preferable to SMS and MMS, two older methods of messaging that don’t offer end-to-end encryption, said Trevor Horwitz, founder of TrustNet, a cybersecurity and compliance services provider.
Even platforms considered the best for end-to-end encryption have downsides. Signal is a favorite among many privacy enthusiasts because its mission emphasizes not collecting or storing sensitive information. This can be especially compelling for people who are wary of WhatsApp’s parent Facebook and its privacy practices. The downside to Signal is it’s not as widely used as WhatsApp and if your contacts aren’t on it, you can’t communicate, said Roger Grimes, an analyst at KnowBe4, a security platform provider.
There are also paid messaging apps that are end-to-end encrypted, such as Threema. It’s privacy by design and no phone number or email address is required, but it costs a few dollars, and getting your friends and family to join when there are free options that are already popular might be a challenge.
Most people will use encryption “if it’s default and they don’t have the slightest inconvenience,” Grimes said.
RCS and iMessage
Many messaging platforms now use RCS, which stands for Rich Communication Services. It’s a successor to SMS and MMS that has enhanced features and also offers the ability for end-to-end encryption, though not by default on all devices. For example, RCS messages using Google Messages are automatically upgraded to end-to-end encryption, but Apple’s implementation of RCS on iPhones is not end-to-end encrypted, Horwitz said.
For any Apple device user, the company’s proprietary iMessage app is end-to-end encrypted, but for users sending RCS messages through other text plans, such as a mobile carrier text option, end-to-end encryption isn’t offered. As Apple explains itself of sending messages through non-iMessage RCS options: “They’re not protected from a third-party reading them while they’re sent between devices.”
Additionally, not all devices are compatible with RCS and it’s not universally supported by carriers. Plus, there are compatibility issues between some iPhone and Android devices that are still being worked out, Horwitz said.
Facebook Messenger gaps in encryption
It’s even more complicated because technology companies have multiple messaging products and not every application from a particular provider supports end-to-end encryption in the same way. For example, Facebook Messenger offers end-to-end encrypted messages, but not in all cases. According to Facebook, some products don’t currently support end-to-end encryption, such as community chats for Facebook groups, chats with businesses or accounts using business messaging tools, Marketplace chats and others.
Consumers should try to dig deeper into the apps they are using to understand how end-to-end encryption works for a particular app, said Deirdre Connolly, cryptography standardization research engineer at SandboxAQ, an AI applications developer. This information is often available in the support or privacy section of a provider’s website. But even then, it can be hard to find and decipher. “You have to go into the fine print,” Connolly said.
Google vs. Apple
Google Messages is the default messaging app on many devices running the Android operating system and many people use it to communicate, but consumers need to understand that not all messages sent or received using the app are end-to-end encrypted. The app supports end-to-end encryption when messaging other users using Google Messages over RCS, according to the company. But messages aren’t end-to-end encrypted when communicating with an iPhone user, for example. Text messages appear dark blue in the RCS state and light blue in the SMS/MMS state. Users will also see a lock symbol when end-to-end encryption is active in a conversation.
In Apple’s case, communications between two iMessage users are end-to-end encrypted, but iMessage is an Apple-specific platform. That means, at present, communications between iMessage users and Android device users aren’t end-to-end encrypted. A green message bubble instead of a blue one indicates the message was sent using MMS/SMS instead of iMessage.
In fact, a Department of Justice antitrust case against Apple harps on the failure to offer end-to-end encryption outside its iOS messaging app as a monopoly concern.
Protocols are being developed to allow end-to-end encryption between different communication platforms using RCS, but that’s still a work in progress. “Work with key industry stakeholders is progressing well and we look forward to updating the market in the coming months,” said a spokesperson for GSMA, an industry organization spearheading this effort.
Phone settings and ongoing risk of hacks
One thing people should do is check the settings on their phones. Many consumers have older phones and those who don’t have auto updates enabled may miss critical security updates, which could include messaging apps that allow for end-for-end encryption, said Chris Henderson, senior director of threat operations at Huntress, a cybersecurity company. Also, with a new phone, settings on transferred apps might not migrate. If you have enabled end-to-end encryption for apps on your prior phone, it’s also a good idea to check that the settings are enabled on the new phone as well, Henderson said.
End-to-end encryption is not foolproof because hackers can intercept users’ communications in other ways, such as if the device itself is compromised, Horwitz said. For security purposes, it’s also important to keep your devices healthy by installing all software updates, avoiding sketchy downloads, and performing periodic reboots.
Even so, using end-to-end encryption is a good practice, when available. “Threat actors go where the masses go,” said Kory Daniels, global CISO for Trustwave, a cybersecurity and managed security services provider. “If the masses are still using unencrypted communication methods, [bad actors] will continue to exploit the opportunity until users begin to evolve their digital behaviors.”
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.
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)
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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.
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.”
Alphabet CEO Sundar Pichai during the Google I/O developers conference in Mountain View, California, on May 10, 2023.
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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.
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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.