They're using Facebook's A P I to ask your data, and then they take it in process in store.

They probably conform to their country's data storage laws.

But Facebook's not keeping the information you've given it to a company for them to take away.

Yeah, that's why you have to cut contact those companies is a Please delete my data.

We actually give away a lot of data without really thinking about it.

And this has come up in the news recently because there's a company, Cambridge Analytica, who have used some data from an APP that was built by a professor at the University for Research Reason.

And then the data's being passed on and on.

It is interesting to talk about how APs offer your data around or when the big that when people building up what they want from you on, why did they build?

It was the biggest question because there's no Marie reason they built these.

How easy is it to make all these lapses?

It is a complicated process.

It sze pretty super easy, and they've got example code snippets on Facebook's developer sites.

You pretty much copy and paste those lines of code and then change what you do after you get permission.

They actually built a framework that makes it easy for you to ask for types of data and then to get permissions from music for that type of data without having to do much coding.

So, first of all, say there's two major types of situations we tend to get into.

One is where you've used Facebook to log into another website, and actually, we should acknowledge we're not just talking about Facebook here.

The most social media platforms have one of these AP eyes to log in with Twitter.

Log in with Google, and that's a common thing a lot of us do because it makes everything super convenient.

The other type of way we do this is that we install these kind of fun little lapse like a little curious to know how much we know about kittens or a little app, which gives you attack out of the most commonly used words used in all of your posts.

Or which celebrity do you look most like, and then it takes your Facebook picture and then murders it with the celebrities as you look a little bit like some celebrity that you want to look like an order, do those things like generate a word cloud of your posts or to take your Facebook image and merge it with the celebrity.

They have to ask for information about you or get access to your data on.

We should think a little bit about why they did that.

And that's probably the question we should ask ourselves Maur and haven't done a lot of the time.

Why would someone want to build on that, Which creates a tack cloud of all of your posts?

They might be interested in analyzing lots of posts to know what sort of things people talk about.

And so they they then want a reason for you to give them the posts.

You wouldn't say.

Yeah, sure.

I'll give my date to the company.

They said a company.

They go.

Why would someone want to give us order the posts we could generate a workout for?

That would be a nice thing that they would get benefit from, and we would get benefit from the upfront about what they do with your data.

They should be and they have to be more up front about it now.

In 2014 Facebook added a kind of permissions request process for review.

So now when you write a nap and submit it, they then look at why did you ask for the data of what you intend to use it for?

But then after you said yes, it then goes on to have trust whether they are as a company, so that they might very well said why they wanted to access it.

And it might be that when it pops up and ask for permission.

It says we want to use this data his length away.

But most people like a ll terms of additions just also.

Yeah, yeah, sure.

Go ahead.

Actually, is very scary to see what Facebook thinks you like.

I had a quick look on the things that gives me adverts for and it was alcohol, parenting and animals in that order as well.

So I'm obviously to eating too much about the wine bar that we like months.

You've given that permission.

Is that in perpetuity?

Then?

Is that forever?

Always that just up to now that's s o.

It varies a little bit about what you give it permission for, and whether you give it historical information about your postal, just things you can't like.

But then, once they've got that, they then bound by data loss, which we're not gonna go too far into this.

But they should if you ask them to delete your data, which is partly where this question came from in the current news topic.

But really, once you've given it to them, you have to proactively ask them to delete it.

So when they write an app like that, they have to request using the sample lines of code to access certain types of data.

And one thing is, in a little bit scary Is that anything that's public about you they don't need reviewed by Facebook?

So your public profile they can anybody create an app which will access your public profile, and you can say yes, install it to you.

And Facebook doesn't check it because it's just accessing the public information that you have public on Facebook.

There's a few things I've learned.

I've learned that there's a whole lot of APS I did not know.

I gave my data to sow some point just stepped over this in order to do it.

There's random ones like Piggy shared.

I don't really know what picky share does, but for some reason it knows all of my friends in those all my posts and it looked at them.

Some of my definitely use for a good reason, like Spotify have in there, and I wanted to be there because it's somehow interact with my social interest in music.

And actually, what you can do is if you go to settings and then the setting section goto APS.

You can see every single app that you've given permission to, what information you've given it and whether or not you're allowing it to posts.

And if it is posting, who can see those posts?

Whether it's your friends, everybody or just you, and you can edit order those things so you can now go back and say, Actually, I don't want you to see this information.

So if that's information, that's no, it happened.

Like the things you will like over the next few weeks.

You can, from this point, stop those up, seeing that information in the future.

However, if you delete enough or take away permissions.

Facebook then clearly says to you, We've taken away permission from this app to use that date or see that data.

But it's up to you to ask that company to delete your information.

Facebook has no control to make that company necessarily delete it.

It says you have to do it so you have to find the people who created the APP, contact them and say, Please delete what you have about me, which is a a scary situation.

You find yourself in where you realize you have to manually contact 30 companies to say you've got information about me, which I don't really want to have any more.

Please delete it.

And then you just have to hope those companies conform toe data protection laws and then we'll meet it.

Is that country reliant that?

Might they really ignore you because they're based somewhere?

L.

A.

Probably Yeah, that's That's another computer file.

Video on privacy lower.

I think the scariest thing is probably that when a nap asks for your information, Facebook allows you to give away what you know about other people to the app to express her experience, the app.

So it might say, We want information about all of your friends And so there's a section on there, which is the scariest thing I found for me, and I guess I kind of knew this.

But it's interesting to see it now.

It's a setting that you can control if it's not too late.

It's too late for all things that people of your friends have given away about you so far.

But you can say I will let my friends give information about me to other APS for this type of information, your religious views, your birthdays, your family and relationships.

What things you like, that type of information, which you allow all of your friends to see, and therefore you allow your friends to give that information to other APS.

And so while you log in to Facebook, you can see a list of all of the APS even stored on what date you've given them.

You can't see a list of all of the apse that your friends have given your data to, and you don't know what data that necessarily, is what they've asked for.

But yes, maybe someone that you're closely friends with us, who's got access to pretty much an unvetted version of your Facebook has maybe given away lots of aspects of your data.

Two other companies.

So one thing you can do right now, if you want to stop this happening, Maura's, you can go into settings and then the app, spit of the settings and perhaps others use is what it's called.

There's a checkbox list of all the things that you allow other people used to see about you on, and you can go start with an identical to those.

It might be that you become not included in there who your 10 closest friends type Pappas, But But maybe you feel better about having protected your data, this kind of thing.

You should do every few months his review.

What you've purposefully accidentally given information to and whether you want to restrict that.

And hopefully those companies in abide by removal laws effectively.

But we need a whole other computer file video on privacy laws properly first oath or five for something that programmers and communications engineers understand very, very well.