Yes, there is a way to recover deleted iMessages.

Previously stored messages still remain, however, so you'll have to clear the database that stores them or get rid of it completely, though at your own risk, Wardle writes.Have you ever deleted an iMessage, only to realize that you accidentally deleted the wrong one? Wished you could recover the message you erased by mistake? In this article we’ll be telling you everything you need to know about how to recover iMessages. There you have the option of managing what information is included in a message notification or disabling notifications altogether. To fix the problem on your Mac going forward, pop into the Signal desktop app's preferences and then the 'Notifications' section. But he warns it's worth looking into whether iOS stores notifications in a similar way as macOS. Wardle noted in his post that the problem may not extend to your iPhone, as it appears messages are removed from the iOS Notification Center. Often such messages are very sensitive and would be ruinous if they well in the wrong hands.' He added, 'If I'm a nation state group, I'm now going to code up a 'grabSignalMessage' plugin for my implants.' 'We set messages to disappear with the expectation that they will go poof. 'This is definitely less than ideal,' Wardle told Motherboard. And that means someone else can get to those messages too, negating one of the main reasons to use Signal in the first place. He showed that those messages are also stored elsewhere in your computer, in an SQLite database, and that with just a little bit of effort, all of the Signal-deleted messages that ended up in the Notification Center can be recovered. Security researcher Patrick Wardle described the problem in some detail in a blog post. If you are using the desktop app for Mac, check your notifications bar messages get copied there and they seem to persist - even if they are 'disappearing' messages which have been deleted/expunged from the app. Depending on your settings, the macOS Notification Center might display and retain your recent messages, including the name of who sent them and what they said. Security researcher Alec Muffett tweeted about the problem this week and the issue lies with how the computers manage notifications. But though it may be wiping your conversations, it turns out your Mac probably isn't, Motherboard reports. One of Signal's major draws is the fact that it automatically deletes your messages.

How to see deleted messages on mac