Pinterest said Friday in an e-mail to its users that the pinboard-style photosharing social network site was breached via its vendor Zendesk.

"We recently learned that the vendor we use to answer support requests and other emails (Zendesk) experienced a security breach," said the content-sharing service. Users "pin" images and videos to their pinboards.

"We're sending you this e-mail because we received or answered a message from you using Zendesk. Unfortunately your name, email address and subject line of your message were improperly accessed during their security breach."

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