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Apple Releases Critical iOS 18.3.1 Update: Security Patch to Protect iPhones from Physical Exploits

Just days after the release of iOS 18.3, Apple has rolled out an urgent security update—iOS 18.3.1—designed to address a critical vulnerability that could leave iPhones exposed to physical security threats. This update, released on Monday, is crucial for safeguarding user data and ensuring device integrity.

A Vital Security Fix

For users already on iOS 18.3, the iOS 18.3.1 update is approximately 450 MB in size and primarily focuses on patching a newly discovered zero-day exploit. This vulnerability could potentially allow unauthorized access to an iPhone through a physical attack, effectively disabling USB Restricted Mode. Apple acknowledged the severity of this issue, stating:

“A physical attack may disable USB Restricted Mode on a locked device. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals.”

By applying this update, Apple ensures that even in the event of a physical security breach, unauthorized access through USB connections is blocked. This eliminates a major loophole that could have been exploited by hackers or law enforcement agencies attempting to unlock devices without user consent.

No New Features, But a Crucial Patch

While iOS 18.3.1 does not introduce new features, it is a vital security update that iPhone users should install immediately. The patch strengthens device security by preventing data extraction via unauthorized physical access. Users with an iPhone XS or later are eligible for this update, and installing it as soon as possible is highly recommended.

iPad Users Also Affected

In addition to iPhones, Apple has released iPadOS 18.3.1 to address the same vulnerability on compatible iPads. The update is available for the following models:

  • iPad Pro (13-inch, 12.9-inch 3rd gen and later, 11-inch 1st gen and later)
  • iPad Air (3rd gen and later)
  • iPad (7th gen and later)
  • iPad mini (5th gen and later)

Immediate Action Recommended

Given the severity of the vulnerability, Apple strongly advises users to install iOS 18.3.1 and iPadOS 18.3.1 as soon as possible. By doing so, users can ensure their devices remain protected from potential exploits that target physical access vulnerabilities.

To update, simply navigate to Settings > General > Software Update and install the latest security patch. Staying updated is the best way to keep your iPhone or iPad safe from evolving security threats.

Source: indianexpress.com


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