Apple has released security updates for iOS, OS X El Capitan, and Safari to address multiple vulnerabilities. Exploitation of some of these vulnerabilities may allow a remote attacker to take control of an affected system. Available updates include: * iOS 9.2.1 for iPhone 4s and later, iPod touch (5th generation) and later, and iPad 2 and later * OS X El Capitan 10.11.3 for OS X Mavericks v10.9.5, OS X Yosemite v10.10.5, and OS X El Capitan v10.11 to v10.11.2 * Safari 9.0.3 for OS X Mavericks v10.9.5, OS X Yosemite v10.10.5, and OS X El Capitan v10.11 to v10.11.2 Users and administrators are encouraged to review Apple security updates for [iOS](<https://support.apple.com/en-us/HT205732>), [OS X El Capitan](<https://support.apple.com/en-us/HT205731>), and [Safari ](<https://support.apple.com/en-us/HT205730>)and apply the necessary updates. This product is provided subject to this Notification and this [Privacy & Use](<https://www.dhs.gov/privacy-policy>) policy. **Please share your thoughts.** We recently updated our anonymous [product survey](<https://www.surveymonkey.com/r/CISA-cyber-survey?product=https://us-cert.cisa.gov/ncas/current-activity/2016/01/19/Apple-Releases-Security-Updates-iOS-OS-X-El-Capitan-and-Safari>); we'd welcome your feedback.