It live on without tell that Facebook has the duty to protect a huge telephone number of users—900 million to be exact . But how , exactly , does it go about doing that?The Verge has an interesting lookat the behind - the - scene hidden security measure measures that are workaday for the social web , but that we do n’t often think about . It seems to be looking out for the modal user , though what Facebook is doing with your data itself is a completely different story .
One of the slipway Facebook protect you is by keeping tabs on your username and word . It scans sites like PasteBin weekly to ensure hack are n’t dumping people ’s certificate .
And what about those C of link you probably come home on Facebook each week ? The site iskeeping an eye on those , too .

Another measuring stick Facebook takes is stripping every drug user of their referral URL when they click one of the two trillion link posted to Facebook every day . In other words , when you click a liaison on Facebook that occupy you to an ESPN article , ESPN can not see what Facebook page referred you to its site , and alternatively sees something like “ facebook.com/l.php?u=http%3A%2F%2F. ” These “ sanitized ” uniform resource locator keep external internet site from using personal selective information against you .
Facebook also keeps a watchful eye on bad practices referred to as “ likejacking ” and “ clickjacking . ” If it suspects something is actually spam , it will give present you with a pop up that asks you if you really desire to Like it before you in reality murder the button .
Additionally , Malware is an obvious concern , and Facebook has a page that identifies renegade sites . But if you ’ve been infected , Facebook will set you up with McAfee ’s Scan and Repair software .

But what about all the friend postulation you get ? Some of them are fake , and Facebook isactively percolate them .
When someone friends you on Facebook , that request does n’t always get through to your inbox . Facebook employs a complex algorithm to decide the likeliness that you know somebody , and whether or not to push through a friend request or register it as junk e-mail inside your “ See All Friend Requests ” folder . In real lifespan , this would be like the government stopping random citizenry from approaching you in a public home and articulate hello . If these people message you , their subject matter will go to your Other Messages folder , a place most mass do n’t explore .
Facebook definitely has a responsibility to its drug user , and now that it ’s public , it ’s got a serious financial obligation to halt onto them , which mean security is an obvious care . Which means it has to keep those hundreds of trillion of users come up back , and to do that , it has to make them feel safe . And though Facebook is protect you from outside threat , you also have to wonder who is protecting you from Facebook itself . [ The Verge ]

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