Based on the sentence two lines before it, it likely means "millions of users": > we had never heard of the broad type of order that Verizon received—an order

Based on the sentence two lines before it, it likely means "millions of users": > we had never heard of the broad type of order that Verizon received—an order that appears to have required them to hand over millions of users’ call records. [...] Any suggestion that Google is disclosing information about our users’ Internet activity on such a scale is completely false.