Your Deleted iPhone Photos May Not Be Gone. What's True (and the Fix)

Last checked: Oct 25, 2026. Apple policies and iOS behavior may change in future releases.

Deleted? Not quite.

A viral post saying your "deleted" iPhone photos aren't really deleted passed 1.3 million views on X this weekend (October 24, 2026). Another post claimed that a Mac backup of one iPhone still held 147,863 files in a folder called PhotoData/Thumbnails. That number is one user's claim, not something we verified.

What's true: forensic examiners have said for years that iOS keeps small thumbnail copies of photos in its PhotoData folder, that those thumbnails can remain after the original photo is deleted, and that they can be retrieved from computer backups.

What's overstated: the claim that "any app with file access can read them." Apple says all third-party apps on iPhone are sandboxed, which is designed to stop apps from reading data stored by other apps.

The real fix: Apple says local iPhone backups on your computer aren't encrypted by default. Here's how to turn it on, plus what else you can do.

#What the viral posts claimed

The fastest-growing post came from @0xCortiq on X (formerly Twitter) on October 24, 2026:

"BREAKING NEWS : Your 'deleted' photos aren't deleted. Claude Code found years of them sitting in a hidden cache on my iPhone."

As of October 25, 2026, that post had 1,355,055 views according to X's public metrics.

An earlier post by @starmexxx on October 23, 2026 said:

"While backing up my iPhone to my MacBook, I scanned the backup folder and discovered a directory called PhotoData/Thumbnails with over 147,000 files ... 147,863 files in total."

That user also claimed "any app with file access can read" these files and that "Apple never clears it."

We did not verify the file count claim. The number of thumbnail files varies by device and use.

#What's actually true about iPhone thumbnails

Forensic experts have documented this behavior for years.

Athena Forensics, a UK digital forensics firm, published an article in February 2020 titled "iPhone Photodata Thumbnails." The article states:

"The Thumbnails are retained within the Photodata folder even if the original version of the image has been deleted from the device."

The article explains that when photos are backed up to a computer via iTunes or Finder, "the iThmb files are stored separately and can also be retrieved as part of a forensic analysis."

The key phrase: "If images have been deleted from a phone, it is sometimes possible to recover deleted thumbnail copies."

Sometimes possible. Not guaranteed. Not full-resolution. Small thumbnails used by iOS for faster display and navigation.

#The part that's overstated

The viral claim said "any app with file access can read them."

Apple Platform Security (published December 19, 2024) says:

"All third-party apps are sandboxed. Sandboxing is designed to prevent apps from gathering or modifying information stored by other apps."

Third-party apps on iPhone cannot freely read other apps' data or system folders like PhotoData. The sandboxing model restricts each app to its own container.

The viral claim did not provide evidence that any app actually read anyone's photos from this folder. It described a theoretical risk based on file access, not Apple's documented access controls.

#How to encrypt your Mac backup (the real fix)

Apple Support says in its article "About encrypted backups on your iPhone, iPad, or iPod touch" (published September 21, 2026):

"Your backup isn't encrypted by default."

Here's how to turn on encryption for local backups on a Mac:

1. Connect your iPhone to your Mac with a USB cable
2. Open your iPhone in Finder (on macOS Catalina and later, Finder replaced iTunes)
3. Go to the General tab
4. Select "Encrypt local backup"
5. Create a password you'll remember. You need this password to restore from the backup.
6. Click Encrypt Backup

According to Apple Support, this "immediately overwrites and encrypts your previous backups" on that Mac.

Look for the lock icon in Manage Backups to confirm encryption is on.

On a PC: The process is the same, but use the Apple Devices app instead of Finder.

Important: Keep your password safe. Apple cannot help you recover your backup if you forget the password.

#What about iCloud backups?

iCloud backups are already encrypted during transmission and storage on Apple's servers. The setting above applies only to local backups stored on your Mac or PC.

The local backup encryption you enable on your computer is separate from iCloud backup encryption, which is on by default.

#Other steps you can take

#Empty Recently Deleted

When you delete a photo, it goes to Recently Deleted and stays there for 30 days (or 40 days if you use iCloud Photos). Empty this album manually to remove photos sooner:

1. Open the Photos app
2. Go to Albums
3. Scroll down to Recently Deleted
4. Tap Select → Delete All

#Delete old backups you don't need

If you have old local backups on your Mac or PC that you no longer need, you can delete them:

1. On Mac: Finder → your iPhone → General → Manage Backups
2. Select the backup you want to delete
3. Click Delete Backup

Old unencrypted backups can still hold data even after you've turned on encryption for new backups.

#Update to the latest iOS

Apple released iOS 17.5.1 in May 2024 to fix a bug that resurfaced old deleted photos for some users. The Verge reported on May 24, 2024 that the bug caused photos that "were still lying around on the filesystems" to reappear in users' photo libraries.

Apple said the bug affected "a small number of users" and was fixed in iOS 17.5.1.

If you're on an older iOS version, update to the latest version:

1. Go to Settings → General → Software Update
2. Download and install any available updates

#Context: Why this went viral now

The posts from October 23-25, 2026 passed 1.3 million combined views during a weekend. According to X post counts we checked, mentions of "iPhone" or "iOS" paired with "deleted photos" or "PhotoData" went from 0-6 posts per day (October 19-23) to 315 posts on October 24 and 753 posts on October 25 (through 16:21 UTC).

X News ran a trending story titled "AI Scans Reveal Hidden iPhone Backup Photos on Macs" (updated October 25, 2026).

The speed of spread, the "breaking news" framing, and the personal stakes (everyone deletes sensitive photos at some point) drove the virality.

The underlying facts about thumbnail retention have been documented since at least 2020. The encryption fix has been available for years. What changed was awareness.

#What we're not claiming

We are not claiming:

• That Apple keeps every deleted photo forever
• That full-resolution originals survive deletion and Recently Deleted removal
• That any app has actually read anyone's photos from this folder
• That iCloud backups are unencrypted
• That the specific 147,863 file count is accurate or typical

We are saying:

• Small thumbnail copies can outlive the original deleted photo
• Those thumbnails can appear in computer backups
• Recovery from backups is "sometimes possible" (forensic experts' language), not guaranteed
• Local Mac/PC backups aren't encrypted by default, but you can turn encryption on
• Third-party apps are sandboxed and cannot freely read system folders like PhotoData

#Sources

1. X post by @0xCortiq, "Your 'deleted' photos aren't deleted" (October 24, 2026, 1.35M views as of October 25, 2026): x.com/0xCortiq/status/2113976294798967018
2. X post by @starmexxx, original claim with the 147,863 file count (October 23, 2026): x.com/starmexxx/status/2113758545216729163
3. Athena Forensics, "iPhone Photodata Thumbnails" (February 1, 2020): athenaforensics.co.uk/iphone-photodata-thumbnails/
4. Apple Platform Security, "Security of runtime process in iOS, iPadOS, and visionOS" (December 19, 2024): support.apple.com/guide/security/security-of-runtime-process-sec15bfe098e/web
5. Apple Support, "About encrypted backups on your iPhone, iPad, or iPod touch" (September 21, 2026): support.apple.com/en-us/108353
6. The Verge, "Here's why deleted iPhone photos returned to some iOS devices" (May 24, 2024): theverge.com/2024/5/24/24163826/apple-iphone-ios-17-5-update-deleted-photos-explained

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