A tough lesson to learn, in regard to Ubuntu, that first there is often a reason certain updates are held back, usually unless you know how to fix it, you should try not to break it.
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One Bird is only one, but make it a flock, what a difference.
Ubuntu Quotes
Many a windows user has entered the Linux fold after a host of bad experiences with malware in the Windows world ---viruses, and all sorts of other malicious bits of software code, too numerous to imagine. Windows is also plagued by a seemingly endless array of security vulnerabilities, leaving the system easy prey to invaders with less than nobile intentions. Every trip out into cyberspace thuse becomes something like a run through the infectious ward of a hospital. For a Windows user, it can sometimes seem that more time is spent ridding the system of viral pests and defending it from invaders that is actually spent getting things done.
From Ubuntu Linux for Non-Geeksby Rickford Grant
Ubuntu101's Blog 