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Since the release of iOS 14, Apple has implemented restrictions on clipboard access within iPhones. By default, when an application attempts to read clipboard content, a prompt is displayed requesting the user’s permission. Only after explicit authorization can the app proceed. However, if the user initiates a paste action, no such prompt is required.
Now, Apple intends to introduce similar safeguards to the macOS platform, aiming to prevent applications from surreptitiously accessing clipboard data without user consent. This move is designed to protect users from having sensitive information covertly harvested during routine copy operations.
According to details shared with developers, macOS 16 will adopt a clipboard permission model akin to that of iOS. If the user actively engages in a copy-paste action, no authorization prompt will appear. However, if an application attempts to read the clipboard in the background without direct interaction, the system will display an alert. Only after the user explicitly grants permission will access be allowed.
Notably, Apple will also revise clipboard-related APIs within macOS. Developers will be able to check the data type present on the clipboard without retrieving its actual contents. Furthermore, users will have the ability to configure app-specific permissions — allowing access at all times, denying it outright, or prompting for authorization with each paste action.
This enhanced privacy architecture is of considerable significance. Apple software engineer Jeff Nadeau noted that the company has encountered apps persistently reading clipboard data in the background — behavior that poses a substantial threat to user privacy.
One prevalent tactic in the cryptocurrency domain involves clipboard hijacking: malicious software monitors the clipboard for wallet addresses and, upon detecting an impending transaction, replaces the copied address with one controlled by the attacker.
Another insidious method entails malicious apps continuously scanning the clipboard for mnemonic phrases or private keys. Upon detecting such sensitive content, they silently exfiltrate the data to compromise users’ wallets. With the new clipboard permission prompts, these threats can now be effectively intercepted.
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