Amazon.com Inc. will reinstate the ability to encrypt data stored on its Fire tablets, months after opting to dial back security on the devices.

“We will return the option for full disk encryption with a Fire OS update coming this spring,” Amazon spokeswoman Robin Handaly said in an e-mail Saturday, without providing a specific date or a reason for the change.

The web retailer decided late in 2015 to remove the ability to encrypt data on the tablets, a few months before a battle erupted between Apple Inc. and the U.S. Federal Bureau of Investigation over the decryption of information locked in a terrorist’s iPhone.

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