Manhattan prosecutors have hundreds of Apple devices tied to crimes that can’t be unlocked, the district attorney’s office said Thursday, underscoring what it sees as the danger of smartphone encryption.

“The harm is experienced every day across the country, in literally over a thousand instances,” said a report released by the office of Manhattan District Attorney Cyrus Vance Jr.

Of 423 iPhones and iPads seized lawfully from October 2014 through this October, 24% are tied to drug cases, 10% to attempted murders or homicides and 9% to sex crimes, the office said. The biggest share, 36%, is tied to larceny, forgery, cyber crime and identity theft.

The devices represent about 35% of the 1,214 Apple devices that been come into the office’s cyber lab since October 2014.

Since September 2014, Apple has designed its software so the company can’t access data on locked devices.