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The security revolution in communicators iMessage he is here! Apple because a little while ago he announced a truly revolutionary improvement in the security of this application, or rather the conversations that users have through it. Even modern quantum computers, which were supposed to be the de facto only option to decipher everything in the future due to their enormous performance, are now practically impossible to decipher.

Apple in their words on the developer blog, they believe that PQ3's protections will "surpass protections in all other widely deployed messaging applications". He specifically writes the following about novices:

"Today we are announcing the most significant cryptographic security upgrade in history." iMessage introducing PQ3, a groundbreaking post-quantum cryptographic protocol that advances the state of the art in end-to-end secure messaging. With compromise-resistant encryption and extensive defenses against even highly sophisticated quantum attacks, PQ3 is the first messaging protocol to achieve what we call Level 3 security – providing protocol protection that surpasses that of all other widely deployed messaging applications. To our knowledge, PQ3 has the strongest security features of any mass messaging protocol in the world.”

PQ3 will gradually be deployed in iMessage od iOS 17.4, iPadOS 17.4, macOS 14.4 and watchOS 10.4. It is quite interesting that in visionThe OS does not initially plan to support PQ3. However, what is planned is that PQ3 will fully replace the existing cryptographic protocol. iMessage within all supported conversations throughout this year. In order to use PQ3, the devices through which communication will take place (both in terms of reception and sending) must be updated to the latest OS versions that will include support. 

KoneWhat are you worried about?

They are already there. iMessage considered one of the most secure communication channels that an ordinary user can access. Of course, they also use end-to-end encryption using cryptographic protocols. However, according to the words Applu based on mathematical models that could potentially capture and secure advanced quantum computers in the future iMessage so break through. Apple therefore decided to develop PQ3, which is designed to protect users from "Harvest Now, Descrypt Later" attacks. These consist specifically in the fact that the attackers obtain a lot of encrypted data, which they then save with the view that at some point in the future they will decipher it thanks to quantum computers or other technologies. 

“Although such quantum computers do not yet exist, extremely well-equipped attackers can prepare for their possible arrival by taking advantage of the sharp decline in the cost of modern data storage. The premise is simple: such attackers can collect large amounts of today's encrypted data and store it all for future use. Although they cannot decrypt any of this data today, they canonechat until they get a quantum computer that can decrypt them in the future, an attack scenario known as Harvest Now, Decrypt Later,” writes Apple further on his blog, stating that PQ3 is a level 3 security. This means that the new feature secures both the initial key creation and the ongoing exchange of messages. In short, iMessage With the transition to PQ3, they will become practically unbreakable and will surpass Signal in terms of security. More information about the news you will find out here. However, we point out in advance that the entire text is in English and that it is very technical and will probably only be understood by experienced developers. 

iMessage PQ3

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