https://www.theguardian.com/technology/2018/jun/14/apple-close-iphone-security-gap-police-fbi-collect-evidence

Move will prevent hackers and others unlocking devices without proper authorisation

Apple is closing a security gap that allowed outsiders to pry personal information from locked iPhones without a password, a change that will thwart law enforcement agencies that have been exploiting the vulnerability to collect evidence in criminal investigations.