After performing the steps above, you may realize that you've accidentally deleted an attachment that you need. Fortunately, there are ways to recover precious data that you've deleted. First, if you have another Apple device such as an iPad or Mac, check for the attachment in the iMessages app on those devices. Next, you can check your iCloud. Depending on the time and date of your last backup, the attachment may be in your iCloud account. One way to know if your messages and attachments are backing up is by going to the Settings on your iPhone and tapping on your name at the top. Then, tap 'iCloud.' From here, scroll down to 'Messages' and see that it's toggled on. If you still have yet to find your iMessage attachments, check out this article.