Technology

How crypto imposters are using Calendly to infect Macs with malware

Published

2 years ago

March 11, 2024

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How crypto imposters are using Calendly to infect Macs with malware

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A new hacking threat is targeting crypto users via Calendly, a popular meeting-scheduling app. This is a serious issue that could compromise your security and privacy, so you need to be aware of how it works and how to protect yourself.

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Calendly app (Calendly) (Kurt “CyberGuy” Knutsson)

Hackers are posing as crypto investors via Calendly

The way this particular threat works is rather straightforward, yet sneaky. To start, many people in the crypto world are seeking investments to support their crypto start-up ideas or something related.

People like this need to be active in crypto communities and investment spaces to connect with the right people to support them. It’s not uncommon for these people to have a link to schedule a meeting with them on their profile, via Calendly, a popular scheduling app not just for people in cryptocurrency but for anyone.

Calendly app (Calendly) (Kurt “CyberGuy” Knutsson)

How the hacker infiltrates the target’s device

Unbeknownst to the soon-to-be victim, these hackers are taking advantage of these individuals by posing as crypto investors, the exact kind of people these folks want to get in touch with. When they book a meeting on this person’s calendar, they add a meeting link that runs a script that installs malware on macOS systems.

A real-life example of how crypto impersonators lure victims

This happened to one unlucky person in this situation. The hacker reached out via Telegram – an encrypted messaging app – and asked about booking a meeting. The person sent the “investor” their Calendly link, and on the day of the meeting, went to the meeting link that the “investor” had added. In most cases, this is normal – a link to a Zoom or Google Meet is not unusual. And because the user had already spoken to the person via Telegram and seemed legitimate, there was no reason to think twice about this.

The sinister scheme was revealed when links failed

Only when the person went to click the link and when the “investor” didn’t show up, did he contact him on the same Telegram thread. The “investor” apologized for the inconvenience and sent a new link, explaining there was an issue with IT.

However, the link still did not work, and the meeting never happened, with the “investor” asking to reschedule. It dawned on the person a little afterward that this may have been a hack attack, via an Apple Script (file extension “.scpt”) that downloads and executes a malicious Trojan made to run on macOS systems.

Hacker Google Meet request (SlowMist) (Kurt “CyberGuy” Knutsson)

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How quick action foiled a Mac malware attack

Because the person who was the target of this attack promptly backed up their data upon realizing the attack, it prevented the loss of evidence regarding the actual malware downloaded onto their macOS. Cybersecurity firms were able to analyze the script information, which led them to identify similarities with previous attacks carried out by the same group and warn the public.

Security alert (SlowMist) (Kurt “CyberGuy” Knutsson)

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The perpetrators are a hacker group from North Korea

A cybersecurity firm discovered a phishing attack in 2023 that was carried out by state-sponsored hackers from North Korea, specifically a subgroup of the notorious Lazarus group. This group typically targets financial gains, aiming to steal money or cryptocurrency to fund the North Korean military regime.

In this particular attack, the North Korean hackers exploited the “Add Custom Link” feature within the Calendly meeting scheduling system on event pages to insert malicious links and initiate phishing attacks. They also employ similar tactics on Telegram.

This incident underscores the importance of vigilance and robust security measures to safeguard against cyberthreats, especially those originating from state-sponsored actors.

Add Custom Link feature (SlowMist) (Kurt “CyberGuy” Knutsson)

Calendly’s response to malware attacks

We reached out to Calendly, and their CISO (chief information security officer), Frank Russo, provided us with this statement.

“We’re aware of these types of social engineering attacks by cryptocurrency hackers. This attack violates our Terms of Use, and accounts are immediately terminated when discovered or reported. To help prevent these kinds of attacks, our security team and partners have implemented a service to automatically detect fraud and impersonations that could lead to social engineering. We are also actively scanning content for all our customers to catch these types of malicious links and to prevent hackers earlier on. Additionally, we intend to add an interstitial page warning users before they’re redirected away from Calendly to other websites.”

How to protect yourself against cyberthreats

MacOS users tend to experience fewer malware attacks than PC users. But this idea can make MacOS users more vulnerable to attacks because they may feel they are simply safe. Because hackers are getting more and more sophisticated, it’s important never to let your guard down and to follow these precautions.

Be cautious with links: If you receive a Calendly link from an unfamiliar sender, refrain from clicking on any embedded links, even if the sender appears trustworthy. Additionally, exercise vigilance when dealing with phishing emails or messages related to crypto exchanges or wallets, as they may contain malicious attachments or links with malware. When using Calendly, take note of the source and domain of any links you encounter on the interface. Before clicking, hover your mouse over the text to verify the link address and avoid accessing potentially harmful phishing links.

Send meeting links yourself: Whenever possible, send the meeting link directly to the person scheduling the call. This minimizes the risk of accidentally clicking on malicious links.

Have good antivirus software: The best way to protect yourself from clicking malicious links that install malware that may get access to your private information is to have antivirus protection installed on all your devices. This can also alert you of any phishing emails or ransomware scams. Get my picks for the best 2024 antivirus protection winners for your Mac, Windows, Android & iOS devices.

Perform regular updates: Regularly update your operating system and security software to stay ahead of potential vulnerabilities.

Have strong passwords and use two-factor authentication: Using the same password across multiple platforms will always make you more vulnerable because if one account gets hacked, they all get hacked. And two-factor authentication is just an extra shield that will prevent a hacker from getting into your accounts. Make sure to use a password manager to keep track of all your passwords.

Person typing on a laptop (Kurt “CyberGuy” Knutsson)

MORE: DON’T FALL FOR THESE SNEAKY TAX SCAMS THAT ARE OUT TO STEAL YOUR IDENTITY AND MONEY

Kurt’s key takeaways

As long as there is money and information to steal online, hackers will stop at nothing to trick innocent people into downloading malware onto their devices. So, stay up to date with the latest threats so that you can ensure you’re doing everything to protect yourself.

Have you encountered suspicious meeting requests via Calendly or other scheduling apps? Do you think the app companies should do more to verify the authenticity of such links? Let us know by writing us at Cyberguy.com/Contact.

For more of my tech tips & security alerts, subscribe to my free CyberGuy Report Newsletter by heading to Cyberguy.com/Newsletter.

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Technology

Google just leaked a first look at Android for PC in action

Published

9 hours ago

January 28, 2026

Press Room

Google just leaked a first look at Android for PC in action

We’ve been waiting months for our first look at Android running on a PC in Google’s upcoming ChromeOS / Android hybrid platform, codenamed Aluminium OS. Now we’ve seen it in action, and have Google to thank for the leak.

9to5Google spotted a bug report related to Chrome Incognito tabs published to the Google Issue Tracker yesterday, including two screen recordings taken from a device running Aluminium OS. Google has now restricted access to the report, but 9to5Google managed to pull the videos first. The site also reports that the bug tracker mentioned an ALOS software version — already confirmed to be the initialism for Aluminium OS — and that the recordings came from an HP Elite Dragonfly 13.5 Chromebook.

The videos themselves — shared to YouTube by Android Authority — add further confirmation that this is Aluminium OS, listing the OS as Android 16, with a build number that matches the ALOS one mentioned in the bug report. It certainly looks like this is an existing Chromebook being used to test the upcoming ALOS experience, which Android head Sameer Samat previously said we should expect to see more from this year.

As for what we see of Aluminium, it’s very much the mashup you’d expect. The taskbar resembles ChromeOS’s, but moves the start button into the center, à la Android. There’s a status bar at the top, more like Android than ChromeOS, with familiar Android icons for battery, Wi-Fi connection, and so on. The video gives us a brief look at the Play Store, along with some split-screen multitasking, but it’s hardly a deep dive of the new OS. We might need to wait for Google to release a video on purpose for that.

Technology

Uber unveils a new robotaxi with no driver behind the wheel

Published

9 hours ago

January 28, 2026

Press Room

Uber unveils a new robotaxi with no driver behind the wheel

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Uber is getting closer to offering rides with no one behind the wheel.

The company recently unveiled a new robotaxi and confirmed that autonomous testing is already underway on public roads in the San Francisco Bay Area. While the vehicle first appeared earlier this month at the Consumer Electronics Show 2026, the bigger story now is what is happening after the show.

These robotaxis are no longer confined to presentations or closed courses. They are driving in real traffic as Uber prepares for a public launch later this year.

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PRIVATE AUTONOMOUS PODS COULD REDEFINE RIDE-SHARING

Uber’s new robotaxi operates on public roads in the San Francisco Bay Area as the company moves closer to offering fully driverless rides later this year. (Klaudia Radecka/NurPhoto via Getty Images)

Who is behind Uber’s robotaxi

Uber is the name most riders recognize. However, two partners handle the technology behind the scenes. Lucid Group builds the all-electric vehicle. It is based on the Lucid Gravity SUV, which was designed for long-range efficiency and passenger comfort. Nuro provides the self-driving system. Nuro also leads testing and safety validation. Together, the three companies are developing a robotaxi service that will be available only through Uber.

Uber’s robotaxi is already driving itself

Autonomous on-road testing began last month in the Bay Area. These tests take place on public streets rather than private test tracks. Nuro runs the testing program using trained safety operators who supervise each trip. The focus is on everyday driving situations such as intersections, lane changes, traffic lights and pedestrians. This stage is critical. It allows engineers to evaluate how the system behaves in real conditions before opening rides to the public.

What makes Uber’s robotaxi different

Uber’s robotaxi was designed from the start to operate without a driver. It combines electric vehicle engineering with visible autonomy features that riders can understand.

Key features include:

A multi-sensor system using cameras, lidar and radar for full awareness
A low-profile roof-mounted Halo module integrated into the vehicle
Exterior LED displays that show rider initials and trip status
In-cabin screens for climate, music and support access
Real-time visuals that show what the vehicle sees and plans to do
Seating for up to six passengers with room for luggage

The robotaxi runs on high-performance computing powered by NVIDIA DRIVE AGX Thor. This system handles the real-time AI processing required for autonomous driving.

A robotaxi ride that explains itself

One standout feature is transparency. Riders can see how the robotaxi perceives the road and plans its next move. The display shows lane changes, yielding behavior, slowing at traffic lights and the planned drop-off point. This helps riders understand what the vehicle is doing instead of guessing. Inside the cabin, passengers can adjust heated seats, climate controls and music. They can also contact support or request the vehicle to pull over if needed.

CAN AUTONOMOUS TRUCKS REALLY MAKE HIGHWAYS SAFER?

The all-electric Uber robotaxi, built with partners Lucid and Nuro, is now navigating real traffic without a human driver. (INA FASSBENDER / AFP via Getty Images)

Uber plans to scale robotaxis across the U.S. and global markets

Uber plans to deploy 20,000 or more robotaxis over the next six years. These vehicles will operate in dozens of U.S. and international markets. Lucid will integrate all required hardware directly on the production line at its Casa Grande, Arizona factory. Uber will own and operate the vehicles along with third-party fleet partners. Every robotaxi ride will be booked through the Uber app, just like a standard Uber trip.

How Uber is handling robotaxi safety and regulation

Safety sits at the center of this rollout. Nuro’s validation process combines simulation, closed-course testing and supervised on-road driving. The system relies on an end-to-end AI foundation model paired with clear safety logic. The goal is predictable, comfortable driving across a wide range of conditions. Uber and its partners are also working with regulators, policymakers and local governments to ensure the service aligns with public safety standards and city planning goals.

When Uber’s driverless rides are expected to launch

Uber says the first autonomous rides will launch in a major U.S. city later in 2026. The service will be available exclusively through the Uber app. Production of the robotaxi is expected to begin later this year, pending final validation.

What this means to you

If you use Uber, driverless rides may soon appear as an option. These vehicles could offer quieter trips, more consistent driving and improved availability during peak times. For cities, a shared electric robotaxi fleet could help reduce emissions and congestion. For riders, seeing how the vehicle thinks and reacts may make autonomous travel feel less intimidating.

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CES 2026 SHOWSTOPPERS: 10 GADGETS YOU HAVE TO SEE

Uber confirms autonomous testing is underway after unveiling its robotaxi at CES 2026, marking a major step toward a public launch. (INA FASSBENDER / AFP via Getty Images)

Kurt’s key takeaways

Uber’s robotaxi effort feels more grounded than many past autonomous promises. It combines a known ride-hailing platform a purpose-built electric vehicle and a self-driving system already operating on public roads. If testing continues to progress, driverless Uber rides could move from something new to something normal sooner than many expect.

Would you get into an Uber if there was no driver sitting in the front seat? Let us know by writing to us at Cyberguy.com.

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Kurt “CyberGuy” Knutsson is an award-winning tech journalist who has a deep love of technology, gear and gadgets that make life better with his contributions for Fox News & FOX Business beginning mornings on “FOX & Friends.” Got a tech question? Get Kurt’s free CyberGuy Newsletter, share your voice, a story idea or comment at CyberGuy.com.

Technology

Grubhub confirms data breach amid extortion claims

Published

21 hours ago

January 27, 2026

Press Room

Grubhub confirms data breach amid extortion claims

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Food delivery platform Grubhub has confirmed a recent data breach after unauthorized actors accessed parts of its internal systems.

The disclosure comes as sources tell BleepingComputer the company is now facing extortion demands linked to stolen data.

In a statement to BleepingComputer, Grubhub said it detected and stopped the activity quickly.

“We’re aware of unauthorized individuals who recently downloaded data from certain Grubhub systems,” the company said. “We quickly investigated, stopped the activity, and are taking steps to further increase our security posture.”

Grubhub added that sensitive information, such as financial details or order history, was not affected. However, the company declined to answer follow-up questions about when the breach occurred, whether customer data was involved or if it is actively being extorted.

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Grubhub confirmed a data breach after unauthorized actors accessed parts of its internal systems, prompting an investigation and heightened security measures. (Michael Nagle/Bloomberg via Getty Images)

What Grubhub has confirmed so far

While details remain limited, Grubhub confirmed several key points. It has brought in a third-party cybersecurity firm and notified law enforcement. Beyond that, the company has stayed largely silent. That lack of detail has raised concern, especially given Grubhub’s recent security history. Just last month, the company was linked to scam emails sent from its own b.grubhub.com subdomain. Those messages promoted a cryptocurrency scam promising large returns on Bitcoin payments. Grubhub said it contained the incident and blocked further unauthorized emails. It did not clarify whether the two events are related.

Sources link the breach to ShinyHunters extortion

According to multiple sources cited by BleepingComputer, the ShinyHunters hacking group is behind the extortion attempt. The group has not publicly commented on the claims and declined to respond when contacted. Sources say the attackers are demanding a Bitcoin payment to prevent the release of stolen data. That data reportedly includes older Salesforce records from a February 2025 breach and newer Zendesk data taken during the most recent intrusion. Grubhub uses Zendesk to run its online customer support system. That platform handles order issues, account access and billing questions, making it a valuable target for attackers.

How stolen credentials may have enabled the attack

Investigators believe the breach may be tied to credentials stolen during earlier Salesloft Drift attacks. In August 2025, threat actors used stolen OAuth tokens from Salesloft’s Salesforce integration to access sensitive systems over a 10-day period. According to a report from Google Threat Intelligence Group, also known as Mandiant, attackers used that stolen data to launch follow-up attacks across multiple platforms. “GTIG observed UNC6395 targeting sensitive credentials such as AWS access keys, passwords and Snowflake-related access tokens,” Google reported. ShinyHunters previously claimed responsibility for that campaign, stating it stole roughly 1.5 billion records from Salesforce environments tied to hundreds of companies.

Why this breach still matters

Even if payment data and order history were not affected, support systems often contain personal details. Names, email addresses and account notes can be enough to fuel phishing attacks or identity scams. More importantly, this incident highlights how older breaches can continue to cause damage long after the initial attack. Stolen credentials that are never rotated remain a powerful entry point for threat actors.

Ways to stay safe after the Grubhub data breach

If you use Grubhub or any online delivery service, a few smart steps can reduce your risk after a breach.

1) Update your password and stop re-use

Start by changing your Grubhub password right away. Make sure you do not reuse that password anywhere else. Reused passwords give attackers an easy path into other accounts. A password manager can help here. It creates strong, unique logins and stores them securely so you do not have to remember them all.

Next, see if your email has been exposed in past breaches. Our No. 1 password manager pick includes a built-in breach scanner that checks whether your email address or passwords have appeared in known leaks. If you discover a match, immediately change any reused passwords and secure those accounts with new, unique credentials.

Check out the best expert-reviewed password managers of 2026 at Cyberguy.com.

ILLINOIS DHS DATA BREACH EXPOSES 700K RESIDENTS’ RECORDS

The food delivery platform says it quickly stopped the intrusion but has not disclosed when the breach occurred or whether customers were targeted. (Leonardo Munoz/VIEWpress)

2) Turn on two-factor authentication

If two-factor authentication (2FA) is available, enable it. This adds a second step when you sign in, such as a code sent to your phone or app. Even if a hacker steals your password, two-factor authentication can stop them from getting in.

3) Watch closely for phishing attempts and use strong antivirus software

Be alert for emails or texts that mention orders, refunds or support issues. Attackers often use stolen support data to make messages feel urgent and real. Do not click links or open attachments unless you are certain they are legitimate. Strong antivirus software can also help block malicious links and downloads before they cause harm.

The best way to safeguard yourself from malicious links that install malware, potentially accessing your private information, is to have strong antivirus software installed on all your devices. This protection can also alert you to phishing emails and ransomware scams, keeping your personal information and digital assets safe.

Get my picks for the best 2026 antivirus protection winners for your Windows, Mac, Android and iOS devices at Cyberguy.com.

4) Remove your data from people-search sites

Consider using a data removal service to reduce your online footprint. These services help remove your personal details from data broker sites that attackers often use to build profiles. Less exposed data means fewer tools for scammers to exploit.

While no service can guarantee the complete removal of your data from the internet, a data removal service is really a smart choice. They aren’t cheap, and neither is your privacy. These services do all the work for you by actively monitoring and systematically erasing your personal information from hundreds of websites. It’s what gives me peace of mind and has proven to be the most effective way to erase your personal data from the internet. By limiting the information available, you reduce the risk of scammers cross-referencing data from breaches with information they might find on the dark web, making it harder for them to target you.

Check out my top picks for data removal services and get a free scan to find out if your personal information is already out on the web by visiting Cyberguy.com.

Get a free scan to find out if your personal information is already out on the web: Cyberguy.com.

5) Ignore crypto messages using trusted brands

Be skeptical of any cryptocurrency offers tied to familiar companies. Grubhub was previously linked to scam emails promoting crypto schemes, which shows how often attackers abuse trusted names. Legitimate companies do not promise fast returns or pressure you to act immediately.

6) Monitor your Grubhub account and email activity

Check your Grubhub account for anything that looks unfamiliar. Watch for unexpected password reset emails, order confirmations or support messages you did not request. Attackers often test stolen data quietly before making bigger moves.

7) Secure the email linked to your Grubhub account

Your email account is the key to password resets. Change that password and enable two-factor authentication if it is not already on. If attackers control your email, they can regain access even after you change other passwords.

8) Stay alert for delayed scams tied to the breach

Breach data is often reused weeks or months later. Phishing attempts may appear long after headlines fade. Treat any future messages claiming to reference Grubhub support, refunds or account issues with extra caution.

These steps will not undo a breach, but they can limit how attackers exploit stolen information and reduce your risk going forward.

FIBER BROADBAND GIANT INVESTIGATES BREACH AFFECTING 1M USERS

Sources tell BleepingComputer the Grubhub breach is tied to extortion demands involving allegedly stolen customer support data. (Gabby Jones/Bloomberg via Getty Images)

Kurt’s key takeaways

Grubhub’s confirmation puts an official stamp on what sources have warned about for weeks. While the company says sensitive data was not affected, unanswered questions remain. As extortion-driven breaches rise, transparency and rapid credential rotation matter more than ever. What stands out most is how past compromises continue to create new risks. When access tokens live too long, attackers do not need to break in again. They simply walk back through an open door.

If companies stay quiet after breaches, how can customers know when it is time to protect themselves? Let us know by writing to us at Cyberguy.com.

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