Calif. governor signs smartphone 'kill switch' bill into law

State Sen. Mark Leno and San Francisco District Attorney George Gascon introduced the California "kill switch" bill in February. Richard Nieva/CNET

California on Monday became the first state to require that antitheft security features come enabled by default for every smartphone sold in the state.

Gov. Jerry Brown signed the so-called "kill switch" bill -- introduced in February by State Sen. Mark Leno and sponsored by San Francisco District Attorney George Gascon -- on Monday, after it passed the state legislature earlier this month. A smartphone kill switch enables an owner to lock down a phone if it is stolen, rendering it inoperable. A spokesperson from Brown's office said the governor was not available for comment.

In May, Minnesota became the first state to pass a kill switch bill, but that law does not require the feature come turned on as the default setting, when a consumer initially sets up his or her new smartphone -- a distinction supporters of the California bill deem very important.

"Opt-in does not end the problem. Because it will not be ubiquitous," said Leno on the Senate floor in April, the first time the bill was presented. The idea is that if thieves expect the software to be enabled on all phones, they won't bother stealing them in the first place. After a heated debate, the legislation narrowly failed its first go-around but passed after a second try two weeks later.

"California has just put smartphone thieves on notice," Leno said Monday, in a statement.

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