where they were finally able to train again. you're up to date on dw news this hour, coming up next shift living in the digital age. i'm marion evans, dean. i'll have another news update for you at the top of the hour. in the meantime, you can get lots more news and information on our website. just go to d, w dot com for me and the entire team in berlin. thanks for watching. stay informed with alive and on demand. gas in language courses, video and audio. any time, anywhere that d w media center is the end of the pandemic in site. we show what it could look like.

will return to normal. and we visit those who are finding it difficult. his successes at noon in a weekly coven 19 special. every thursday on d, w ah, shift spatial the data traces we leave online at why these are so valuable for companies. facebook collect our data to create accurate user profiles. the company may well know more of our secrets than even our closest friends and family. ah. okay, some one is using sound to go online again. i

already know, hey, it's adeena 30 years old. listen cologne, originally from cedar. trained in communication 1st and now studies business administration. she told me all of the of her own volition. but i know more than that, i even know her biggest secret. 2 how well i don't want to give away too much, but i will tell you this. i collect data. i'm facebook's database. i know what edina likes, music by kluso for example, and she's a fan of by a live of course and of her gym. i know which post she likes and what she shares with her friends, her comments, the people she sends messages to and what she writes, i can watch her outside of facebook too because the dina has enabled access to

location data. so i always know where she is and can see where she regularly spends time. 3 times a week, she uses this cafes, why fi? most likely she works there, maybe to pay for her studies, or for something else. her location data also allows me to see which other facebook users are close by and whom she off meets including at the cafe. this is probably a colleague. this guy stays over almost every night. i'd say he's her boyfriend. but every once in a while, another profile is at hers and at night too, oh, i know this guy. but this isn't her only secret. as i learned with the help of her activities on other apps. she uses this one to shop

monte user email or facebook to sign in facebook as convenient, right? just one click and you're in and usefully, it means more data for me. i didn't recently stopped buying wine. she is currently opting for smoothies, frozen pizza and pickles. and when i show her this photo of her friends may be on facebook, she hesitates just a little longer than usual. interesting. know the data points to one thing, but her boyfriend doesn't know yet. and neither does her colleague how can we leave as little dot online as possible, is deleting cookies and browse history regularly enough to serve anonymously to

people allowed us to use their profiles to tasteless. oh, jessica vega is often online but she wants to remain as anonymous as possible. oh, she's in stolen ad blocker and she regularly deletes have browser history. oh, oh oh, the photo for the fists was i try to be careful and mindful of which information i share. so i really try to protect my personal data as much as i can when i'm online . i'm of mama's will, does prevent companies from collecting her data will. can they profile jessica, in spite of it, mark, italy is less worried about his data. he has 20 apps installed on his phone, 11 of which he uses regularly. included apps that belong to tech giant meta and google, which are can i add in 40? does i save you on to it's more of google and facebook using my god to make

recommendations and surely else given can oh, we joined both jessica and mark for their daily digital routine to see which data is connected and how it's used for personalized advertising. martin clayman is professor for marketing at the college ruin institute of technology in germany. together with a colleague, he's going to take a look at the digital traces. jessica and marc leave online and see which can be used for individualized ads. most options if in the given spectrum that you'd really have to invest a lot of time and any time to browse the internet anonymously. well, i think the average consumer isn't a quote to stop the data from being collected adopts. i'm not too emptying. jessica regularly checks this news website. the page saves the so called cookies, small they to packages oh, unique identifiers on her computer. we asked the marketing experts to take

a closer look at the new sites. these cookies contain data on jessica's preferred language and other personal settings. so far so good. but they also find so called 3rd party cookies symbolized by these triangles. these cookies enable companies to follow people who've visited their new site as they continue browsing the web because they are accessed by other sites as well. if jessica visits one of these pages, they recognize her and collect important data on her online behavior. the jessica regularly deletes her browser data, including cookies is it nonetheless possible to track and identify her. 2 like with old uses, her browser automatically sends data like screen resolution font system software and time zone to a given website operator. 2 they use this information to optimize their site. she visits a my unique dot org to check whether this means she is identifiable on line. the

result is, yes, no other user transmits the exact same data as she does. website operators can therefore identify her track her and place ads even without 3rd party cookies. back to la giggly who wants to buy a new laptop online. he's been looking at options on different websites and has found one he likes, but he's dylan sure. so for now, he adds the laptop to his cart and hurts to university online office and computer dealers keep popping up as he serves the web there, even on his phone advertises no, both devices are his because marcus signed into his google account on his laptop and smartphone. websites that have google cookies show him personalized ads.

google also places ads online. jessica notices this when she google's common such times under shown matching ads. this service is called google ads. the company auctions off ads that are displayed whenever users enter certain times into a search engine. the more frequently the time is looked up, the more the advertiser has to pay for their i to be shown. it's a form of targeted advertising for which user profiles aren't even needed. facebook's approach is different. it's business model is to enable advertisers to show their routes to exactly the right uses. to examine how it works, our marketing experts place an ad on facebook which they want to appear in marty egless feed. they select the criteria accordingly. as a rec begins to lease molded, we consider the location to cause rule and can narrow down the exiting oscar, and we can add male for gender mentally showing events. yeah,

to say how old is with the english? they go to the swines wanted to so i think we should be good with the age bracket. $18.00 to $20.00 to radically does that. and we know that he likes football and supports manchester united as interest so we can add that to interest does from orange turn. also investment. we also know that he was born in guatemala to markham, which we can add as well can the on the on leave they are ready to publish their right. it's the moment of truth. will the ad appear amongst facebook feed? it does next to photos and post by his friends. there's the ad, but not a glee. it's not very concerned. let's say all night long between sean, are you in ways a bit scared of the companies like facebook, google and sophie le you? but i think there is so many uses that are more interesting for advertising purposes of foreign online attack than i am that it's relatively uninterested. does

this relative? only 200? jessica vapor has a different opinion. she uses the services, but she doesn't like being constantly tracked versus of unifying. there's definitely a strange feeling to know that there are databases which contain your shopping profile and that these profiles are being sold on to others without you ever knowing what they're being used for. and what happens to your data. cashless payments are convenient and quick, but all the disadvantages to a world without cash bins can bargain back if we no longer had cash, we wouldn't be able to pay anonymously any more. so we'd always leave down to traces that would be analyzed and used to manipulate us. i'm in the money put these days. people increasingly pay even small sums with card all my ball payment. and e commerce is booming. with each electronic payment we make meta data is collected about us that could be analyzed by algorithms such as our location or how long we

take to purchase an item online. oh, how often we make typos. tech companies use our behavior to create predictive profiles. payment data is especially telling farms doc mm hm. and isn't steady payment daughter. this aspect of confirmations are off so you can create a profile about someone and say this person tends to do this. so let us get on with payment data, you can see what they actually do, what they're willing to spend money on the account. it's like a promise where profiles are confirmed or questions. it's sort of like putting them to the test people. if i've got payment data, i know what that person has really liked webpage ticked, ah, companies used as to target tests with ads in the future. we might even be given individualized online prices depending on how much we were willing to pay in the past.

ah, see all the noise and image adding shafts, they observe our characteristics and to even assign psychological traits to us that we ourselves may be unaware of feeling. this means that these profiles for the old, this is but the provider's claim are smarter than we are. and also the profile knows you miss and your true wants and needs more than we can see some think you might want to put a to and that's with the manipulation starts. if not before i'm finished, i don't know that i'm susceptible to certain context that i might not act wisely in certain situations. and i don't know that there are products that irresistible to me up to it as this product to kept in should be the scheme. more data means more accurate profiles. so how predictable do we want to be ah

ah, if it omitting is big enough in the company that wanting rest in getting enough regardless, is that each time i looked at my list them, i mean what i really cool myself a meeting id to. it's hot goes to me, that's like a job. what would begin? does the kids 1st hope you're actually allowing someone to steal money from your knowingly, ah, to 77 percent. next on d, w. making the headlines and what's behind them? dw news africa. this shows that the issues have been the continent. life is slowly getting back to normal here on the streets to give you in the report. on the inside . our correspondence is on the ground reporting from across the continent. all the trends doesn't matter to you. in 60 minutes on

d w. stories that people the world over information, they provide the opinions they want to express d, w on facebook and twitter up to date and in touch. follow us. ah hello and welcome to a brand new edition of the 77 percent. this is the show for africa youth. and i'm your host, michael o t. with they say money makes the world go round. but what happens when you don't have any of it? yes was coming up on today's show on the streets of nairobi we debate while many young people are drawn in debt. we meet our.