Apple closes numerous holes in Mac OS X and Safari
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With the 10.7.4 Mac OS X Lion update and security update 2012-002 for 10.6, Apple has closed numerous critical vulnerabilities in Mac OS X and its components. The most prominent fix in this update sees the Apple developers have stopping Lion from storing plain text passwords. Due to a mistake in the previous update, Lion stored the passwords of users who mounted their home/user directory from a network volume (NFS, AFP or SMB) in the system log unencrypted and readable by anyone with admin or physical access.