ช่องโหว่ง OpenSSL Heartbeat Extension.
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Credit: https://xkcd.com/1354/
Cr. https://dl.dropboxusercontent.com/u/2330423/%E0%B8%8A%E0%B9%88%E0%B8%AD%E0%B8%87%E0%B9%82%E0%B8%AB%E0%B8%A7%E0%B9%88%20OpenSSL%20Heartbeat%20Extension.pdf
