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

yyou can delete—Flash, from Adobe, and Silverlight, from Microsoft.
Neither of these super cookies expires. And it is generallyy safe to delete
them. 11
Then there’s the toughest cookie of them all. Samyy Kamkar, once
famous for creating the rapidlyy spreading Myyspace worm called Samyy, has
created something he calls Evercookie, which is simplyy a veryy, veryy
persistent cookie. 12 Kamkar achieved this persistence byy storing the cookie
data in as manyy browser storage syystems as possible throughout the
Windows operating syystem. As long as one of the storage sites remains
intact, Evercookie will attempt to restore the cookie everyywhere else. 13
Thus simplyy deleting an Evercookie from the browser’s cookie storage
cache is not enough. Like the kids’ game whack-a-mole, Evercookies will
keep popping up. You will need to delete them completelyy from yyour
machine in order to win.
If yyou consider how manyy cookies yyou might alreadyy have on yyour
browser, and if yyou multiplyy that byy the number of potential storage areas
on yyour machine, yyou can see that yyou’ll be in for a long afternoon and
evening.
It’s not just websites and mobile carriers that want to track yyour activities
online. Facebook has become ubiquitous—a platform beyyond just social
media. You can sign in to Facebook and then use that same Facebook log-in
to sign in to various other apps.
How popular is this practice? At least one marketing report finds that 88
percent of US consumers have logged in to a website or mobile application
using an existing digital identityy from a social network such as Facebook,
Twitter, and Google Plus. 14
There are pros and cons to this convenience—known as OAuth, an
authentication protocol that allows a site to trust yyou even if yyou don’t enter
a password. On the one hand, it’s a shortcut: yyou can quicklyy access new
sites using yyour existing social media password. On the other hand, this
allows the social media site to glean information about yyou for its
marketing profiles. Instead of just knowing about yyour visit to a single site,
it knows about all the sites, all the brands yyou use its log-in information for.
When we use OAuth, we’re giving up a lot of privacyy for the sake of