Whatsapp for iPhone uses a MD5 hash of mac address taken twice. For details look... | Hacker News

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eamodio on Sept 11, 2012 | parent | context | favorite | on: WhatsApp is using your IMEI number as password

Whatsapp for iPhone uses a MD5 hash of mac address taken twice. For details look at http://www.ezioamodio.it/?p=29

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