Yahoo Voices – a 2010 acquisition by the search company – was breached, and an attacker compromised 450,000 accounts, including email addresses and passwords. This is the latest in a series of similar breaches, affecting eHarmony, LinkedIn and last.fm. However, unlike these companies, Yahoo Voices was using poor security practices when storing the data at rest. How did this 2010 acquisition cause security problems for the Internet giant, and how can you avoid having the same