The update has both its good and bad parts, but users generally tend to notice the bad ones first.
If you've ignored this message, we recommend you visit your Twitter profile's Settings section and look under "Privacy and settings" for an option named "Personalization and Data."
Do Not Track is an unofficial standard supported by most browsers and respected by a few websites. This technology allows users to opt-out from being tracked by third-party services on websites they do not directly visit. For example, Do Not Track allows a user to tell a website to not load tracking code from analytics services, social networks, and online advertising companies.
Twitter dropping Do Not Track support is ironic because the company was one of its main supporters a few years back when Do Not Track launched.
Twitter has been slowly eroding at this feature in the past years. For example, a few years back, Twitter tweaked its policy to allow itself to store off-Twitter web browser history for its users for up to 10 days.
Starting June 18, Twitter will keep this data for up to 30 days. This means that if you're a Twitter user and you visit a site where there's a Twitter share button or embedded tweet, Twitter will know you visited that site and keep the name of that site associated with your profile in its database for up to a month.
All of these changes have been done as Twitter's stocks have been slowly declining. These updates have a clear objective, and that;s to make Twitter more attractive to online advertisers.
Twitter also announced it updated its policy regarding how it shares personal, aggregated, and device-level data. For example, the company may share name, email, or other personal information, but if the advertiser that buys this data wants to use it, they will have to ask for user permission.
Taking into account that this data may change hands several times, you may be clicking on a long-winded user agreement on one site, and you may allow some no-name advertiser to use your Twitter data like name or email for targeted ads.
It is no surprise that users are flocking to that new open-source and privacy-focused Twitter clone named Mastodon.
Nonetheless, Twitter, as a company, is more upfront about this practice than most and is providing an option to disable targeted ads, and a section where users can edit and even remove the data Twitter has collected in the past. To access this latter section, just go to your Twitter Settings section under the "Your Twitter data" menu section. Below is an image of that section on a mobile device.
Twitter has discontinued the Do Not Track feature. So here’s some privacy advice for y’all. Turn all this stuff off. https://t.co/l9R8Ld9AjM— Sharon Carpenter (@msscarpenter) May 18, 2017
Pls check your #twitter account settings. You may not like some of the new privacy settings— Chandrasekhar raju (@619chandru) May 18, 2017
PRIVACY ALERT Y'ALL— Lauren Ancona (@laurenancona) May 18, 2017
Twitter is about to opt you in to some Facebook-grade tracking of your browsing on other sites. You'll see a pop up: pic.twitter.com/Bo0UhxHCPu
Double check your privacy settings. Twitter just reset loads of people to their default "grab-everything" with recent update. New stuff, too pic.twitter.com/zzPs7hfhi1— oɥɔsɐp (@da5ch0) May 17, 2017
You need to check BOTH Settings->Privacy and safety and Settings->Your Twitter data to get a full picture of how Twitter monitors you.— Richard Akerman (@rakerman) May 18, 2017
just updated twitter privacy settings and this poped up… makes me wonder about it being on by default… pic.twitter.com/CPEPFmB5Tb— Jenni Brehm (@Pfenya) May 18, 2017