WhatsApp "Delete for Everyone" feature potentially puts user privacy at risk

WhatsApp’s Delete for Everyone feature lets you remove messages from a chat after they’ve been sent, but it doesn’t guarantee that the content is gone forever. Recipients may have already read the message, saved screenshots, downloaded media, backed up chats, or viewed notification previews before it was deleted. On some devices, deleted message content may also remain accessible through notification history or third-party apps. If you’re sending sensitive information, assume it could still be seen even if you delete it later, and use disappearing messages or view-once media when appropriate.

Key takeaways

• Delete for Everyone removes messages from the chat, but it cannot erase screenshots, downloaded media, notification previews, or backups that already exist.
• Recipients will usually see a placeholder such as This message was deleted, so deletion is not invisible.
• For better privacy, avoid sending sensitive information you may later regret sharing, and consider using disappearing messages or view-once media for temporary conversations.
• Be cautious of third-party apps that claim to recover or reveal deleted WhatsApp messages, as they may introduce security and privacy risks. Use Bitdefender Scamio to evaluate suspicious apps, links, or messages before installing or opening them.

WhatsApp”s “Delete for Everyone” feature, meant to allow people to delete files they accidentally sent, works differently on iPhones than it does on Android phones, a researcher has warned. This discrepancy could place senders” privacy at risk by leaving some media files undeleted on recipients” iPhones.

WhatsApp has a vast install base of 1.5 billion users in over 180 countries. Most WhatsApp customers use the service daily, including for group chats with friends, family members or co-workers. Such a popular service is subject to scrutiny from privacy activists and cybersecurity researchers.

Most recently, researcher Shitesh Sachan has raised a red flag regarding WhatsApp”s functionality – specifically, a discrepancy surrounding the “Delete for Everyone” feature on iPhones (iOS) and Android devices. According to Sachan, the feature doesn”t delete media files sent to iPhones of users who have the “Save to Camera Roll” setting on. While the message containing the deleted file does disappear for everyone in the group chat, regardless of platform, if any iPhones in the group chat have “Save to Camera Roll” set to On, the files stay with the recipients.

On Android, WhatsApp behaves differently even with the identical configuration. If a user accidentally sends a file to a group, by deleting it for everyone, the actual file saved to the Android recipient”s photo gallery is deleted as well.

The difference in behavior between the two platforms could put users at risk. For example, Android users accustomed to the app”s standard functionality might not know that their iPhone counterparts could still have the accidentally-sent file stored locally on their devices.

The WhatsApp folks disagree with the researcher in that this is a privacy / security issue.

As reported by The Hacker News, when Sachan reported the issue to the company, a spokesperson allegedly replied:

“The functionality provided via “Delete for Everyone” is intended to delete the message and there is no guarantee that the media (or message) will be permanently deleted—the implementation focuses around the message presence in WhatsApp.”

Frequently asked questions (FAQs)

When you delete for everyone on WhatsApp, can the other person see?

Yes. When you use Delete for Everyone, WhatsApp removes the message from the chat for all participants, but the recipient will usually see a placeholder that says “This message was deleted.” If they already read the message, took a screenshot, downloaded the media, saw it in a notification preview, or backed it up before deletion, they may still have access to its contents.

How do I permanently delete WhatsApp messages from both sides?

You can’t guarantee that a WhatsApp message is permanently deleted from both sides. Delete for Everyone removes the message from the chat, but it cannot erase screenshots, downloaded files, notification history, backups, or copies saved outside WhatsApp. If the message contains sensitive information, assume the recipient may still have seen or saved it. The safest approach is to avoid sending sensitive information in the first place or use features like disappearing messages or view-once media when appropriate.

What does it mean on WhatsApp when it says delete for everyone?

Delete for Everyone means WhatsApp will attempt to remove the selected message from the chat for all participants, provided it’s deleted within WhatsApp’s allowed time window and the recipients are using a compatible version of the app. After deletion, everyone will see a notice indicating that the message was deleted, rather than the original content.

What is the difference between delete for me and delete for everyone?

Delete for Me removes the message only from your own device, while everyone else can still see it. Delete for Everyone removes the message from the chat for all participants, but it does not erase copies that were already viewed, downloaded, backed up, or captured in screenshots or notifications. If you’re sharing sensitive information, remember that deleting a message later does not guarantee it has disappeared completely.