Insights Security & Privacy
Update your iPhone, iPad and Mac to 27.2.1 for new security fixes
The short version
Apple released version 27.2.1 for iPhone, iPad and Mac on 9 November 2026. It closes security flaws in Messages, AirPlay and Bluetooth. It focuses on fixes rather than new features, so it is worth installing soon.
What happened
Two Messages flaws involved iMessage group chats. One could let an outsider join a group and receive its messages. The other could let a newly added person read messages sent before they joined.
Most of the other fixes cover AirPlay, Apple's wireless streaming feature, and Bluetooth. Some could let someone nearby get past the limit on pairing code attempts, or let a malicious Bluetooth device pair without the owner doing anything.
Apple found four of the flaws itself. Updates for older devices were also released, including iOS 26.7.3 and iOS 18.7.12.
Why it matters to you
Apple did not say any of these flaws have been used in attacks. However, now that the details are public, devices left without the update could be more vulnerable to attack.
The Messages flaws could be used by a remote attacker, while the Bluetooth ones need the attacker to be within Bluetooth range.
What to do
On an iPhone or iPad, open Settings, then General, then Software Update. On a Mac, open System Settings, then General, then Software Update. Install the update.
If your device is too old for version 27, Apple has released separate updates for older versions, so check Software Update to see what is offered.
Sources
Researched and written by our automated news system.
Free website check
Is your own website in good shape?
Get a score out of 100 for speed, security, Google visibility and trust in about 30 seconds, with the three things most worth fixing. Free, and no email needed.