Identify theft protection service LifeLock reportedly exposed customer email addresses

Symantec's identity theft protection service, LifeLock, has reportedly exposed millions of customer email addresses due to a website bug.
LifeLock's website was taken down briefly after alerted by security journalist and researcher Brian Krebs, who published the flaw on his blog.
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The vulnerability allowed anyone with a web browser to collect customer email addresses by changing a number in the URL, which is used to unsubscri