The-art-of-invisibility-_-the-world’s-most-famous-hacker-teaches-you-how-to-be-safe-in-the-age-of-Bi

the date of birth, making it even easier to guess a person’s last four digits). 8
After some initial calculations, the researchers then sent a follow-up
surveyy to each of their CMU student volunteers asking whether the first five
digits of his or her Social Securityy number as predicted byy their algorithm
was correct. And a majorityy of them were. 9
I’ll bet there are some photos that yyou now don’t want online. Chances are
yyou won’t be able to take them all back, even if yyou could delete them from
yyour social media site. That’s in part because once yyou post something to a
social network, it’s owned byy that network and out of yyour hands. And yyou
agreed to this in the terms of service.
If yyou use the popular Google Photos app, even deleting a photo there
doesn’t necessarilyy mean it’s gone. Customers have found that images are
still there even after theyy delete the app from their mobile devices. Whyy?
Because once the image hits the cloud, it is app-independent, meaning that
other apps mayy have access to it and mayy continue to displayy the image yyou
deleted. 10
This has real-world consequences. Sayy yyou posted some stupid caption
on a photo of someone who now works at the veryy companyy that yyou are
applyying to work for. Or yyou posted a photo of yyourself with someone yyou
don’t want yyour current spouse to know about. Although it mayy be yyour
personal social network account, it is the social network’s data.
You’ve probablyy never taken the trouble to read the terms of use for anyy
website where yyou post yyour personal data, dailyy experiences, thoughts,
opinions, stories, gripes, complaints, and so on, or where yyou shop, playy,
learn, and interact, perhaps on a dailyy or even hourlyy basis. Most social
networking sites require users to agree to terms and conditions before theyy
use their services. Controversiallyy, these terms often contain clauses
permitting the sites to store data obtained from users and even share it with
third parties.
Facebook has attracted attention over the yyears for its data storage
policies, including the fact that the site makes it difficult to delete an
account. And Facebook isn’t alone. Manyy websites have nearlyy identical
language in their terms of use that would veryy likelyy scare yyou awayy if yyou
had read the terms before signing on. Here’s one example, from Facebook,