The Zendesk customer service provider has reported that some of its clients have had portions of their accounts compromised. The affected client list includes Twitter, Tumblr, and Pinterest. Zendesk says that only email address and email subjects of support inquiries have been leaked, and possibly some phone numbers. They have specifically said that no passwords are part of this leak.

• Wired: Zendesk Security Breach Affects Twitter, Tumblr and Pinterest
• Zendesk: We’ve been hacked
• TechCrunch: Zendesk Hacking Affects Tumblr, Pinterest and Twitter Users