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Don’t ignore Apple’s urgent security update

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Don’t ignore Apple’s urgent security update

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If you use an iPhone, iPad, Mac, Apple Watch or Apple TV, listen up. Apple has released a major security update to fix a zero-day vulnerability, which is a security hole that hackers discover and exploit before the company has a chance to fix it. 

Attackers were already using it in targeted attacks. In other words, this was not just a possibility. It was happening.

The flaw, tracked as CVE-2026-20700, affects multiple Apple operating systems. If you have delayed updates lately, this is one you should not ignore.

If you own an Android or Windows PC, this is also a good reminder to check for updates. 

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APPLE PATCHES TWO ZERO-DAY FLAWS USED IN TARGETED ATTACKS

Apple’s latest security updates affect iPhone, iPad, Mac, Apple Watch and Apple TV, so now is the time to check every device you own. (iStock)

What is CVE-2026-20700 and why it matters

CVE-2026-20700 is a memory corruption vulnerability affecting:

  • iOS 26.3
  • iPadOS 26.3
  • macOS Tahoe 26.3
  • watchOS 26.3
  • tvOS 26.3
  • visionOS 26.3

In simple terms, this bug could allow an attacker to run arbitrary code on your device. That opens the door to spyware, hidden backdoors or silent takeovers without obvious warning signs. Apple says this vulnerability was used as part of an infection chain combined with two previously patched flaws against devices running older versions of iOS. Those earlier bugs were fixed in December 2025. Devices that skipped those updates remained exposed. This is how many real attacks unfold. Hackers chain vulnerabilities together and quietly move in.

Which devices need updating?

Here is a breakdown of the available updates:

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  • iOS 26.3 and iPadOS 26.3 for iPhone 11 and later, plus newer iPads
  • iOS 18.7.5 and iPadOS 18.7.5 for iPhone XS, XS Max, XR and iPad 7th generation
  • macOS Tahoe 26.3, Sequoia 15.7.4, Sonoma 14.8.4
  • tvOS 26.3 for Apple TV HD and Apple TV 4K
  • watchOS 26.3 for Apple Watch Series 6 and later
  • visionOS 26.3 for Apple Vision Pro
  • Safari 26.3 for supported macOS versions

If your device qualifies, update it as soon as possible.

Why this update deserves attention

Security updates can feel routine. Many of us see the notification and decide to deal with it later. This time is different. Apple confirmed the flaw was actively exploited. That means attackers already know how to use it. Running older software gives them a window of opportunity. Updating closes that window.

How to update your iPhone or iPad

Updating takes only a few minutes.

  • Go to Settings
  • Tap General
  • Tap Software Update
  • If an update appears, tap Download and Install
  • Turn on Automatic Updates so you do not miss future fixes

Keep your device connected to Wi-Fi and power during the process.

APPLE WARNS MILLIONS OF IPHONES ARE EXPOSED TO ATTACK

Once you reach this screen on your iPhone, tap Update Now to install Apple’s latest security fix immediately. (Kurt “CyberGuy” Knutsson)

How to update your Mac

  • Click the Apple menu in the upper left corner
  • Choose System Settings or System Preferences
  • Select General
  • Click Software Update
  • If an update appears, select Restart Now or Update Tonight

Your Mac may restart during the process. Keep it plugged in and connected to the internet until the update finishes.

Mac users will see options like Update Tonight or Restart Now, and installing this update closes a flaw already exploited in attacks. (Kurt “CyberGuy” Knutsson)

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How to update Apple Watch

  • Keep your Watch on its charger and near your iPhone
  • Open the Watch app on your iPhone
  • Tap General
  • Tap Software Update
  • Tap Download and Install if available

Your Watch will restart during the update.

Your Apple Watch also receives critical security fixes, so keep it on the charger and update it just like your iPhone. (Kurt “CyberGuy” Knutsson)

How to update Apple TV

  • Open Settings on Apple TV
  • Go to System
  • Select Software Updates
  • Choose Update Software
  • Select Download and Install

Stay connected to power and Wi Fi until the update completes.

How to update Safari

Safari updates are included with macOS updates.

  • Go to the Apple menu
  • Click System Settings
  • Select General
  • Click Software Update

If Safari appears separately, click Update Now and restart your Mac.

How to update your Apple Vision Pro

  • Put on your Vision Pro and open the Settings app.
  • Select General from the sidebar.
  • Tap Software Update.
  • If an update appears for visionOS 26.3, choose Download and Install.
  • Make sure your Vision Pro stays charged and connected to Wi-Fi until the update completes.

MALICIOUS MAC EXTENSIONS STEAL CRYPTO WALLETS AND PASSWORDS

Ways to stay safe

Installing this update is the most important step. Still, there are additional habits that strengthen your protection.

  • Turn on automatic updates for every Apple device
  • Restart devices regularly to clear temporary processes
  • Avoid clicking unsolicited links or attachments, and use strong antivirus software. Get my picks for the best 2026 antivirus protection winners for your Windows, Mac, Android and iOS devices at Cyberguy.com.
  • Remember, Apple threat notifications will never ask for passwords or verification codes
  • Be cautious when viewing HTML-formatted emails in Apple Mail
  • Consider enabling Lockdown Mode if you face a higher risk

Cybercriminals rely on hesitation. They count on us assuming we will get to the update later.

Kurt’s key takeaways

Apple moved fast to fix this vulnerability, and that is reassuring. Now it is up to us to do our part. I get it. Updates interrupt your day. They force a restart. They rarely feel urgent. But here is the thing. Installing updates is still the simplest and most effective way to protect your device from active threats. A few minutes now can prevent a serious security problem later.

What is your biggest reason for delaying updates, and has it ever cost you? Let us know by writing to us at Cyberguy.com.

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Copyright 2026 CyberGuy.com. All rights reserved.

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Technology

A rogue AI led to a serious security incident at Meta

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A rogue AI led to a serious security incident at Meta

For almost two hours last week, Meta employees had unauthorized access to company and user data thanks to an AI agent that gave an employee inaccurate technical advice, as previously reported by The Information. Meta spokesperson Tracy Clayton said in a statement to The Verge that “no user data was mishandled” during the incident.

A Meta engineer was using an internal AI agent, which Clayton described as “similar in nature to OpenClaw within a secure development environment,” to analyze a technical question another employee posted on an internal company forum. But the agent also independently publicly replied to the question after analyzing it, without getting approval first. The reply was only meant to be shown to the employee who requested it, not posted publicly.

An employee then acted on the AI’s advice, which “provided inaccurate information” that led to a “SEV1” level security incident, the second-highest severity rating Meta uses. The incident temporarily allowed employees to access sensitive data they were not authorized to view, but the issue has since been resolved.

According to Clayton, the AI agent involved didn’t take any technical action itself, beyond posting inaccurate technical advice, something a human could have also done. A human, however, might have done further testing and made a more complete judgment call before sharing the information — and it’s not clear whether the employee who originally prompted the answer planned to post it publicly.

“The employee interacting with the system was fully aware that they were communicating with an automated bot. This was indicated by a disclaimer noted in the footer and by the employee’s own reply on that thread,” Clayton commented to The Verge. “The agent took no action aside from providing a response to a question. Had the engineer that acted on that known better, or did other checks, this would have been avoided.”

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Last month, an AI agent from open source platform OpenClaw went more directly rogue at Meta when an employee asked it to sort through emails in her inbox, deleting emails without permission. The whole idea behind agents like OpenClaw is that they can take action on their own, but like any other AI model, they don’t always interpret prompts and instructions correctly or give accurate responses, a fact Meta employees have now discovered twice.

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Phishing scam exploits Apple Mail ‘trusted sender’ label

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Phishing scam exploits Apple Mail ‘trusted sender’ label

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Phishing emails are getting more convincing every day. Scammers copy the look of trusted brands and rely on urgency to get you to click before you think. But sometimes the most misleading part of a scam is not the email itself. It is the signal your own email app gives you.

A CyberGuy reader recently sent us a screenshot of an email that looked suspicious but included something surprising at the top. Apple Mail displayed a banner that said, “This message was sent from a trusted sender.” At first glance, that message feels reassuring. Many people would assume the email must be legitimate. The reader sent the screenshot with the subject line “Another sneaky trick.” In the image, Apple Mail labels the message as coming from a trusted sender even though the email itself shows several signs of a phishing scam.

Here is the catch. That label comes from Apple Mail itself, not from Apple and not from a system verifying the email. In other words, a phishing email can still appear trusted. Understanding how this happens can help you avoid handing your Apple ID or other personal information to scammers.

APPLE APP PASSWORD SCAM EMAIL WARNING

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Scammers often copy Apple’s branding and use urgent warnings to push people into clicking malicious links. (Photo Illustration by Thomas Trutschel/Photothek via Getty Images)

Why Apple Mail may label a phishing email as a trusted sender

Apple Mail automatically adds the trusted sender banner in certain situations. It usually appears when the email address looks familiar to your device. For example, Apple Mail may display the banner if:

  • The sender’s address is saved in your Contacts
  • You have replied to that email address before
  • The address appears in previous email conversations

The feature is designed to help you quickly recognize people you communicate with often. It is meant as a convenience signal, not a security verification. That distinction is important.

Warning signs of a fake Apple account email

Phishing emails often copy the look of real Apple notifications. The goal is to create urgency so the victim clicks before thinking. The email in the screenshot contains several classic warning signs.

Generic greeting

The message begins with “Dear user” instead of addressing the recipient by name. Legitimate account emails typically reference your name or Apple ID information.

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Slightly incorrect branding

The email references “Cloud+ subscription.” Apple’s real service is called iCloud+. Small branding mistakes often appear in phishing campaigns.

Urgent scare tactics

The message warns that personal data could be permanently removed from cloud storage. Fear and urgency are common tools in phishing scams.

Payment problems tied to account threats

Scammers often claim a subscription payment failed and your account is at risk. The goal is to push victims to click a link and enter login details. Apple does not send emails threatening immediate deletion of iCloud data because of a billing issue.

Why the Apple Mail trusted sender banner can be misleading

Because the banner relies on familiarity, scammers can sometimes exploit it. Cybercriminals often spoof real email addresses so their messages appear to come from someone you know. If that address matches a contact or previous message history, Apple Mail may still mark it as trusted.

REAL APPLE SUPPORT EMAILS USED IN NEW PHISHING SCAM

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That can create a false sense of safety. The banner simply reflects your email history. It does not confirm the sender’s identity or verify that the message actually came from Apple or any legitimate company. In some cases, that visual signal can make a phishing email look more believable than it really is.

The “trusted sender” banner in Apple Mail reflects your contact history. It does not verify that the email actually came from Apple or another legitimate company. (Sean Gallup/Getty Images)

Ways to stay safe from Apple phishing emails

Phishing emails continue to evolve, but a few simple habits can greatly reduce your risk.

1) Avoid clicking links in account warning emails

If you receive a notice about your Apple account, open your browser and go directly to Apple’s official website instead of using the email link.

2) Use strong antivirus software

Strong antivirus software can help detect malicious links, suspicious downloads, and phishing pages before they reach your device. Get my picks for the best 2026 antivirus protection winners for your Windows, Mac, Android & iOS devices at Cyberguy.com

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3) Use a data removal service

Scammers often gather personal information from data broker websites to make phishing emails look more convincing. Removing your data from these sites reduces the information criminals can use 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.

4) Check your Apple account settings directly

You can verify subscriptions by opening Settings on your device, tapping your Apple ID and selecting Subscriptions.

5) Look closely at branding and wording

Misspelled product names, unusual formatting, and generic greetings often reveal a phishing email.

6) Enable two-factor authentication

Two-factor authentication (2FA) adds another layer of protection, even if someone manages to steal your password.

Cybercriminals frequently disguise their emails by mimicking legitimate addresses, making it look like the message was sent by someone you trust. (Wei Leng Tay/Bloomberg via Getty Images)

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Kurt’s key takeaways

Email apps often try to help by identifying messages that appear familiar. Unfortunately, scammers understand how those systems work. The trusted sender banner in Apple Mail reflects your contact history. It does not confirm that the message came from Apple or any legitimate company. That means one simple habit still offers the best protection. Pause before clicking any urgent account warning. Because in the world of phishing scams, the messages that look the most convincing are often the most dangerous.

If your email app told you a message was trusted, would you still double-check before clicking? Let us know by writing to us at Cyberguy.com.

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Copyright 2026 CyberGuy.com. All rights reserved.

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The FBI is buying Americans’ location data

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The FBI is buying Americans’ location data
Senate Intelligence Committee Hears Testimony From Top Officials On Worldwide Threats

WASHINGTON, DC – MARCH 18: Federal Bureau of Investigation Director Kash Patel testifies during a Senate Intelligence Committee hearing on worldwide threats in the Hart Senate Office Building on March 18, 2026 in Washington, DC. A closed session immediately followed the hearing. (Photo by Kevin Dietsch/Getty Images)
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