More than 150 million Google users have seen their chance of compromise drop by half following the adoption of two-step verification, a process where users logging in to a Google service will be asked to respond to a push notification sent to a second device, the company said today.

The result is an early sign that Google’s effort to boost the overall security of its user base and protect accounts from compromise is paying off. Over the past six months or so, Google has turned on the additional security check for 150 million early adopters using its services and another 2 million YouTube creators, who accounts are especially valuable, the post said.