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Signal’s refusal to offer even an encrypted offline backup option, along with its primary device architecture centered on your smartphone presents a lost device risk-and that will not work for many everyday uses.īut as iMessage has shown, there are ways to preserve security and resilience-we don’t need to make a hard choice between the two. But you can transfer Signal messages from an old iPhone to a new one, securely, using its new direct device-to-device transfer, launched this year in time for iPhone 12.įor most of us, the risk that our end-to-end encrypted messages might be stored without end-to-end encryption in the cloud may be dismissed as less of a risk than losing a device.

If you lose your phone, you will lose your message history.

Signal offers multiple device options, but unlike Apple it preserves the concept of a primary device and does not offer a cloud backup option. Yet again with WhatsApp, its upstart rival Signal has taken a lead in launching secure features that WhatsApp is missing. But neither look likely to be in place in time for the millions set to receive new iPhone 12s in the coming few weeks. Either of those updates will fix this issue and provide a secure way to transfer WhatsApp to a new iPhone.

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WhatsApp reportedly now has both multiple linked devices-with full message histories on all devices-and end-to-end encrypted backups in the works. But this is not how WhatsApp advises you to transfer messages to a new phone, and if you disable WhatsApp’s iCloud backup, you run that risk of a lost or crippled device resulting in a lost message history.

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You can back up your old device to a Mac or PC, and restore from there or you can also use iPhone’s offline device-to-device migration, introduced last year, and hope it restores WhatsApp.

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There are options to address this, but they make the upgrade process complicated. “Some of your most personal moments are shared with WhatsApp,” the messaging platform says, “which is why we built end-to-end encryption into our app-your messages, photos, videos, voice messages, documents, and calls are secured from falling into the wrong hands.” WhatsApp’s parent Facebook has warned that such “wrong hands” include themselves, in the event of any “compromise of server and networking infrastructure.” Again, though, cloud back-ups invalidate that security. Rely on cloud back-ups, though, and you’ve done the work of breaking end-to-end encryption for them. Where the platforms cannot access your data, they cannot be compelled to do so by law enforcement agencies. After all, the encryption fight between big tech and lawmakers revolves around the inability for investigators to break end-to-end encryption. But WhatsApp still uses backups.Īll of this leaves WhatsApp in an uncomfortable spot. All of which hits home when upgrading to a new device, where the process is designed around iCloud’s syncing by default. But, with iMessage, you would need to lose access to ALL your devices to lose your messages.Īs ever more data can be synced using iCloud or other cloud services, the idea of having a unified backup in case you lose a device becomes much less critical. Similarly, you don’t need to enable Apple’s iCloud backups, storing an iMessage key. You don’t need to back up WhatsApp to iCloud-but you risk losing your message history if you lose or change your phone. If the encryption limitation with iCloud backups is little understood across Apple’s vast userbase, this innovative iMessage fix now in place is even less well understood. “If you have iCloud Backup turned on, your backup includes a copy of the key protecting your Messages.” “No one else can access or read this data.” Apple does not have a key.

“Messages in iCloud” maintains end-to-end encryption, “your data is protected with a key derived from information unique to your device, combined with your device passcode, which only you know” Apple explains. If you add a new device, you simply enable “ Messages in iCloud” under your iCloud settings and all your messages will be uploaded. Not only that, but Apple also offers the option to sync your full message history across all those linked devices. You can use the same iMessage account on your iPhone, iPad and Mac. So, how did iMessage fix the problem? Unlike WhatsApp, iMessage offers multi-platform access. Let’s put this more simply, WhatsApp’s recommended method to transfer your account to a new iPhone was rejected by Apple for its own iMessage three years ago, given the serious security and privacy concerns involved.