A good utility to use to combat all clipboard-related exploits is one of Apple's example code: ClipboardViewer[0]. You can see a screenshot of it displaying the

A good utility to use to combat all clipboard-related exploits is one of Apple's example code: ClipboardViewer[0]. You can see a screenshot of it displaying the copied code from the demo in the article here[1]. Besides being able to see the hidden characters, you can also see the internal "layers" of clipboard, e.g., how can a rich-text sentence be pasted to both a plain-text editor and a rich-text one. [0]: https://developer.apple.com/library/content/samplecode/ClipboardViewer/Introduction/Intro.html https://developer.apple.com/library/content/samplecode/Clipb... [1]: https://s3.andyfang.me/screenshots/clipboard-viewer.png https://s3.andyfang.me/screenshots/clipboard-viewer.png