In a recent security memo, Apple has alerted millions of iPhone owners to be on the lookout for two critical alerts that indicate they may be targeted by mercenary spyware attacks. The tech giant has developed sophisticated tracking mechanisms to identify when individuals are being personally targeted by cybercriminals.

Apple's Threat Notifications are designed to inform and assist users who may have been targeted by these sophisticated attacks. Such attacks are highly complex and often cost millions of dollars, making them difficult to detect and prevent. However, Apple emphasizes that the majority of users will never be targeted in this way.

The two ways in which iPhone owners will be notified of being targeted include a Threat Notification appearing upon signing into the Apple ID website, and a notification via email and iMessage to the addresses and numbers associated with their Apple ID. If either notification is received, users are urged to follow any instructions provided, which may involve updating their iPhone's security software or activating Lockdown Mode.

To improve overall security on iPhones, Apple has provided official tips, including updating devices to the latest software, protecting devices with a passcode, utilizing two-factor authentication and a strong Apple ID password, installing apps from the App Store, using strong and unique passwords online, and refraining from clicking on links or attachments from unknown senders.

Apple acknowledges the gravity of these threat notifications and advises users to seek expert help, such as the Digital Security Helpline provided by the nonprofit Access Now. For those specifically targeted, Apple has introduced Lockdown Mode, a defense mechanism against sophisticated cyber-attacks. When enabled, Lockdown Mode restricts certain apps, websites, and features to minimize exploit potential.

Upon activating Lockdown Mode, users can expect the following changes: messages with specific attachment types will be blocked, certain complex web technologies will be restricted, incoming FaceTime calls will be blocked unless initiated by the user, invitations for Apple services will be blocked unless previously invited, restrictions will be applied to photo sharing, and certain device connections and wireless connectivity features will be limited. However, users will still be able to receive phone calls and plain text messages while Lockdown Mode is active.

To activate Lockdown Mode, iPhone owners must ensure their device is updated to iOS 16 or iOS 17. By navigating to Settings > General > Software Update, users can check for the latest software version. Then, in Settings > Privacy & Security > Lockdown Mode, they can enable the feature by following the provided instructions.

Apple's warning about mercenary spyware attacks serves as a reminder for iPhone owners to remain vigilant, stay updated on software patches, and implement recommended security measures to protect their devices and personal data from sophisticated cyber threats.