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A user's wall is visible to anyone with the ability to see their full profile, and friends' wall posts appear in the user's News Feed. In July 2007, Facebook allowed users to post attachments to the wall, whereas previously the wall was limited to text only. [12] In May 2008, the Wall-to-Wall for each profile was limited to only 40 posts.
In August 2007 the code used to generate Facebook's home and search page as visitors browse the site was accidentally made public. [6] [7] A configuration problem on a Facebook server caused the PHP code to be displayed instead of the web page the code should have created, raising concerns about how secure private data on the site was.
Facebook posts can have an unlimited number of characters, with images and videos. Users can "friend" users, both sides must agree to being friends. Posts can be changed to be seen by everyone (public), friends, people in a certain group (group) or by selected friends (private). Users can join groups.
Messages sent between users of Facebook on the Facebook Chat platform. In computer networking, a private message, personal message, or direct message (abbreviated as PM or DM) refers to a private communication, often text-based, sent or received by a user of a private communication channel on any given platform. Unlike public posts, PMs are ...
The site also makes it easier for Facebook to differentiate between accounts that have been caught up in a botnet and those that legitimately access Facebook through Tor. [6] As of its 2014 release, the site was still in early stages, with much work remaining to polish the code for Tor access.
[65] In a blog post, Facebook stated that the different levels of access was necessary "because this is a new experience we've been testing", although user feedback has questioned this line of thinking by pointing to earlier temporary reactions, including dedicated Halloween and Mother's Day reactions, that were available to all users despite ...
With the amount of information that users post about themselves online, it is easy for users to become a victim of stalking without even being aware of the risk. 63% of Facebook profiles are visible to the public, meaning if you Google someone's name and you add "+Facebook" in the search bar you pretty much will see most of the person profile. [72]
In a 2012 study, researchers found that young people are taking measures to keep their posted information on Facebook private to some degree. Examples of such actions include managing their privacy settings so that certain content can be visible to "Only Friends" and ignoring Facebook friend requests from strangers. [80]