SAN FRANCISCO (AP) — The tip prosecutors in San Francisco and New York contend they are renting visualisation of Apple’s new iOS7 confidence underline designed to make it harder to reactivate a stolen iPhone.

San Francisco District Attorney George Gascon and New York Attorney General Eric Schneiderman pronounced Monday they aren’t judging Apple Inc.’s new activation close underline until they can entirely know how it works.

Apple mentioned a new underline during a Worldwide Developers Conference in San Francisco on Monday.

While Apple didn’t yield most fact on a new feature, association officials contend it would deter iPhone theft.

Gascon and Schneiderman have been seeking a heading wireless makers to emanate a ‘‘kill switch’’ to quell a arise in cellphone thefts and robberies nationwide. They are co-hosting a ‘‘Smartphone Summit’’ in New York City on Thursday.