Apple has published a new support document that encourages customers to update to the latest iOS versions in order to “protect your iPhone from web attacks.”

“Security researchers recently identified web-based attacks that target out-of-date versions of iOS through malicious web content,” the support document reads.

“For example, if you’re using an older version of iOS and were to click a malicious link or visit a compromised website, the data on your iPhone might be at risk of being stolen,” the company says.

Apple also says that it “thoroughly investigated these issues as they were found and released software updates as quickly as possible for the most recent operating system versions to address vulnerabilities and disrupt such attacks.”

Earlier this month, Apple rolled out security updates to older iPhones and iPads running iOS 15 and iOS 16.

Apple says devices running iOS 13 and iOS 14 should update to iOS 15 to “receive these protections and will receive an additional alert to install a Critical Security Update in the next few days.”

iOS 26.3.1 is the latest public version of iOS. Apple is also still updating iOS 18 with iOS 18.7.6 released this month.

Older devices not capable of running iOS 18 or later should be on iOS 15.8.7 and iOS 16.7.15 to have the latest security updates.

Apple also released the first Background Security Improvement for multiple devices this week.