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.
IDN homogeneity attacks can occur if you write a domain name with Unicode characters that resemble typical Latin letters, but they are not.
These domains are used for phishing, and trick users into thinking they have them access on a regular site instead of a cleverly crafted clone.
Xisigr, a security researcher at Tencent Security Xuanwu Lab, recently discovered how they manage the productApple's Unicode characters.
This, which he found the researcher is that Apple has done good work with most Unicode characters except one which is the 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 released security updates in July on application Safari, and the software for iOS, macOS, tvOS and watchOS.
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