So you might have heard that Facebook has suspended #CambridgeAnalytica and Strategic Communication Laboratories (SCL) for fraudulent use of #data extending back to 2015.… Here's how to check your privacy and ad settings on @facebook. A thread.
Anyone that uses Facebook has probably given permission to an app at some stage. Maybe you use FB to sign into other sites, or you wanted to see some future predictions for fun. That's grand, but they retain access to your data even after you stop using them. Here's how to review
First go to your drop down menu & click Settings. Then click Apps. Review these carefully. For e.g. I use Kickstarter and 9gag frequently so those are grand, but see the ones like Klout and Giveaway widget? I'll want to remove permissions for those, even if only I can see posts.
Click app name or pencil icon to edit. You'll see a list of info you've provided, post visibility settings & more. Any data they have already stored on you won't be removed, you need to contact the developers for that. Delete is at the end. You can delete all app posts too.
I recommend looking through the list once every 6 months at least. I've removed more than half of those apps now, and only left the ones that I use regularly and trust. Never use apps, play games or use FB to log into other sites? You can turn the functionality off completely:
Driven up the wall with Candy Crush notifications or whatever game is currently popular? You can also turn them off here.
Here's an interesting one - maybe you're careful not to use apps and share your info, but your friends might be doing it on your behalf. There's an option here to limit how much info your friends can share on your behalf. I recommend making this as strict as possible!
Now that we've dealt with apps, lets take a quick look at your ad settings. There are a large number of ways to target ads on Facebook, but you can set some preferences. Again you'll find this in Settings, this time in Ads. This screen looks a little different to the last:
Ok, so lots of info on this screen. Advertisers can target based on interest e.g. Anyone over 18 that is interested in video games. You can see (and remove) the interests that FB assigned to you based on your activity here. Take some time to review here. Click X to remove any
It takes some time to go through all that, but it will make your FB experience better. For example, I removed religious and political targeting as I don't want to see those kinds of ads on FB. It's quite scary how much info they pull on you, and how much of it is accurate.
Next important field is "Your Information". Here you can choose if advertisers can see your employment/study/relationship details. I'm going to remove most of these. Next look at the categories FB has put you in. Scarily accurate. Again, x to delete. Hover to see the reason why.
Further down you'll see some options for where the ads can be shown to you. I recommend reading these and deciding for yourself if you want them on or not. Turning them off means they can't use your data, but that will also make your ads much less relevant to you. Your call!
Last but not least, you can choose to block certain adverts for a period of time. Right now mine is limited to parenting, alcohol and pets, but you can suggest more categories if you'd like.
You can learn more about how FB advertising works here:…
So why is this all important? Because people often mistakenly believe their personal data is worth nothing. It really really is. As a budding data analyst and a social media analyst by trade, it's shocking how much I can learn about you with some enterprise level tools.
Many FB users mistakenly believe that if they have their posts set to friends only that they are locking down their data. Yes, that is important, but few actively monitor the above settings. For more basic settings, check out the FB privacy check tool.
I also want to give a shout out to @TransparentRef - if you're monitoring your privacy and ads, consider installing @WhoTargetsMe which helps catalogue any ads related to the #8thref (regardless of your permissions) to track who is paying for which ads. #Repealthe8th
Anyways, happy #StPatricksDay2018, I have a parade to catch so I'll leave it at that for now but I'll do a thread on Twitter permissions and preferences tomorrow if there's interest. Lá fhéile Pádraig sona dhaoibh!
Oh and here's a great ad that shows how much data can be pulled about you online. If a small team can do this in such a short time, imagine the kind of profile the likes of Cambridge Analytica are able to build!

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More from @Hazel_ok

May 30, 2018
In today’s “how are people this dumb” thread I’d like to address the vague legal threats that have been popping up in my mentions regarding “being on a list” and “GDPR”. #repealshield @repeal_shield ➡️
Yes love, you are on a list. It’s called a block list. It’s one of twitters core functionalities. Wow, look here I can even see and manage my own block list from within the app! 🤓 Now, you’re hardly complaining about someone using a choice to block ya are ya? ➡️
“I don’t care who you block you can’t share your block list like that” Au contraire my ignorant friend, that is also a functionality of Twitter- the ability to export and import block lists.… ➡️
Read 17 tweets
May 24, 2018
So, here is the long promised @repeal_shield block list overview. I know I've been promising it a while, but the list grew so rapidly and I'm never to the data analysis stuff so it took much longer than expected. #RepealShield
Firstly, this analysis is not based on the full block list as it currently stands. There are currently over 16,000 on the list - this analysis is based on the last data dump from a few days ago so that's 13,474 users.
Now, we're seen some absolutely odious users. Some not just actively pushing abuse and misinformation, but also breaking the Twitter rules (e.g. fake political party accounts.) So, unsurprisingly, some accounts have since been suspended, about 2.42% of all blocked accounts.
Read 18 tweets
May 18, 2018
Here’s a test for the antichoice campaigners that come knocking on your door. Ask em if they believe abortion is murder. They’ll mainly say yes. #together4yes #8thref #repealthe8th ➡️
Now ask if they believe a 14 years sentence is enough for a girl taking an abortion pill, or if the full mandatory life sentence for murder should be the maximum term. Now watch them scramble. ➡️
So far I’ve found it goes one of these ways: a) the old reliable side step that they also use for the rape question. ➡️
Read 25 tweets
May 9, 2018
A quick thread on the use of mental health by antichoicers, and why it’s both harmful and wrong. Mental health is just as important as physical health. Sadly this is something that we’re ignored in this country for too long, and it’s still under resourced. #8thref #together4yes
Antis are claiming that abortion will basically be widespread and a free for all if it’s allowed on mental health grounds. This is insulting not only to women who need abortions, but also further stigmatizes mental health. ➡️
I see a “fact” being thrown around by antis is that “97% of all UK abortions are on mental health grounds”. Yes, 97% of UK abortions are on health grounds. Yes, the majority of these are mental rather than physical health. But it’s misleading to state that this will happen here.
Read 22 tweets

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