On Facebook, the struggle to figure out who owns and accesses our data remains years away from any resolution -- if we ever reach one. Last week, Facebook announced that it will act to shore up some privacy concerns that were voiced a month ago by Jennifer Stoddart, the privacy commissioner of Canada.

At the time, Stoddart noted that Facebook's current privacy settings were unclear to users. Among her complaints: The fact that Facebook stores information even after users delete an account, a criticism privacy advocates had also leveled at the social network in the past.

Aside from the information in our profiles that we choose to make available to our friends, friends of friends, or everyone on Facebook, the biggest security and privacy loophole could be in third-party applications, another issue Facebook addressed yesterday.

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