Apple has removed its advanced data protection (ADP) feature from the UK, following a dispute with the UK government over encryption and access to user data.

This comes after the Home Office requested access to encrypted iCloud data under the investigatory powers act (IPA), a law that requires leading tech firms to provide information to law enforcement when required.

ADP, which ensures that only account holders can access their stored data using end to end encryption, will no longer be available to UK users, making them more vulnerable to cyber and malware attacks.

From Friday afternoon, those trying to activate the feature received an error notification, while existing users will have their access revoked.

Without it, standard encryption will apply, which means Apple will be able to access user data and share it with law enforcement, if presented with a warrant.

Apple expressed its “grave disappoint[ment]” over the decision, saying that it remains committed to offering its users the highest level of security for their personal data.

The tech giant emphasised that strong encryption is more necessary than ever, as cyber threats and data breaches arise.

According to the BBC, the government issued a technical capability notice (TCN) to Apple, requiring the firm to comply with the data access request. The Home Office has declined to comment.

It cited that sources familiar with the matter have said that even if it was issued, it would not grant blanket access to all user data, as individual authorisations would still be required.