Although most Apple users install updates right away, there is always an exception. If you are one of those people who do not update their devices, you should know that the letter "d" is not always the letter "d" when it appears in the Safari address bar.
It may not sound serious to you, but it is a very important problem because it can lead you to adventures according to various security researchers.
The attacks IDN homography can be done if you write a domain name in Unicode characters that look like standard Latin letters, but aren't.
These domains are used for phishing, and they deceive users to think they have access to a regular site instead of a cleverly created clone.
Xisigr, a researcher better safetys at Tencent Security Xuanwu Lab, recently discovered how Apple products handle Unicode characters.
This, which he found the researcher is that Apple has done a good job with most Unicode characters, except one that is letter letter (ꝱ) (U + A771).
The character looks like a regular letter 'd', except it also features a lower apostrophe. So xisigr discovered that Safari was not showing the apostrophe, but was showing the letter dum as the Latin letter d.
The researcher reported his findings to Apple, which went public security updates in July for the Safari app, and software for iOS, macOS, tvOS, and watchOS.
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