Apple Users Urged to Update Devices Following Major Security Concerns

Apple has released a series of emergency security updates after a major vulnerability was discovered in its operating systems. The security risk potentially exposes iPhone, iPad, and Mac users to hackers who can gain unauthorized access to personal data, documents, and photos.

CISA Orders Swift Action

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has instructed federal agencies to immediately address these vulnerabilities, which were abused as part of a zero-click iMessage exploit chain. This exploit chain, known as BLASTPASS, was used to deploy the Pegasus spyware developed by the NSO Group.

Notable Details:

  • The vulnerabilities were uncovered by Citizen Lab.
  • These flaws were leveraged to target iPhones belonging to a Washington DC-based civil society organization.
  • BLASTPASS works through PassKit attachments that house malicious images.
  • Apple users do not need to interact with these images for the spyware to be activated.

Impacted Devices and Security Measures

The affected devices range from both older to newer models, including:

  • iPhone 8 and later versions
  • iPad Pro (all models), iPad Air 3rd generation and later, and more
  • Macs running macOS Ventura
  • Apple Watch Series 4 and subsequent versions

Apple’s official support page provides detailed information on these vulnerabilities, tracked as CVE-2023-41064 and CVE-2023-41061. They have been addressed in updates for macOS Ventura 13.5.2, iOS 16.6.1, iPadOS 16.6.1, and watchOS 9.6.2. Both these vulnerabilities allow attackers to execute arbitrary code on unpatched devices.

Compliance and Patch Deadlines:

  • CISA added these security flaws to its Known Exploited Vulnerabilities catalog.
  • Federal agencies are mandated to secure all vulnerable devices by October 2nd, 2023.
  • CISA also advises private companies to expedite patching these vulnerabilities.

Steps for Apple Users

It’s crucial for Apple users to check their current iOS version and download the required security updates immediately. If your device operates on iOS 16.6 or an earlier version, you must update at once.

How to Check and Update:

  • Go to the “Settings” on your iPhone or iPad.
  • Select “General,” and then “About” to view your current iOS version.
  • If it’s 16.6 or lower, proceed to “Software Update” to initiate the updating process.
  • Tap “Install Now” and await the automatic restart of your device post-update.

Additional Security Measures

For those at heightened risk, Citizen Lab suggests activating the Lockdown Mode. This mode restricts certain attachment types, blocks web technologies, FaceTime, and shared albums, and stops devices from connecting with one another.

Activating Lockdown Mode:

  • Head to “Settings” on your device.
  • Choose “Privacy & Security”.
  • Select and activate “Lockdown Mode”. Restart your device post-activation.

Recorded Zero-Days in 2023:

  • Two zero-days in July: CVE-2023-37450 and CVE-2023-38606
  • Three zero-days in June: CVE-2023-32434, CVE-2023-32435, and CVE-2023-32439
  • Three zero-days in May: CVE-2023-32409, CVE-2023-28204, and CVE-2023-32373
  • Two zero-days in April: CVE-2023-28206 and CVE-2023-28205
  • A WebKit zero-day in February: CVE-2023-23529

The Broader Implication for Tech Companies

Apple’s recent security challenges offer a reminder to other tech giants about the significance of proactive cybersecurity measures. As cybercriminals employ increasingly sophisticated methods, the tech industry must be a step ahead, prioritizing user data protection and device security. Investments in R&D for cybersecurity, regular audits, and fostering collaborations with third-party security institutions can play a crucial role in this endeavor.

Past Incidents and Trends The urgency with which both Apple and federal agencies have responded to these vulnerabilities underscores the evolving landscape of cybersecurity threats. Since January 2023, Apple has addressed a total of 13 zero-days targeted at iOS, macOS, iPadOS, and watchOS devices. The months of May, June, and July alone saw the discovery of multiple zero-day vulnerabilities, signaling an uptick in cyber threats.


This zero-click exploit is particularly nefarious as it doesn’t demand any user action for device infection. With this severity, an immediate update to iOS 16.6.1 is advised. As Apple is anticipated to announce the iPhone 15 soon, users should stay vigilant and continuously monitor BGR and other trusted news outlets for the latest developments to ensure their devices remain secure against potential threats.

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