What is metadata?
When you read something about the privacy issue, you will see that the word 'metadata' comes up. If the word is not familiar, then you must be wondering - what is the metadata thing?
Let's look at the metadata instead of technical words and definitions.
Metadata literally means data about data.
For example, writing or a book. What is written about that book, who is the author, what is the date of publication, what is the price of the book, what is the number of pages, the total number of words written in all these are metadata of that book
Catch a song again. Who wrote the song, when it was published, who sang it, who composed it, which album part, how many lines are there in the lyrics of the song, what is the song written about, what are the people, all this information is the metadata of the song.
So you might think, isn't it great to know so much information?
Then you can ask me now, but brother Tahmid, I see the metadata in that negative sense! Why is that?
Then let's see why!
In the language of technology, your metadata is information about you. It doesn't matter how many hands or feet you have. Unique information about you.
Let's see what is your metadata?
Your name, your phone number, your mail ID, your age, your date of birth. Your device (mobile, PC, laptop), SIM card in your phone, its carrier (ie Robi, not GP, not Teletalk). Your phone name, manufacturer, model number, your GPS location means where you go every day, how long you stay, what you do, where you spend more time. Use your mobile data, not WiFi. How long do you use which apps, when do you use which apps, which websites do you visit, what do you search for, how long do you stay on a website, what kind of content does that website have. How long have you been on Facebook, how long have you been on YouTube, what kind of videos do you like to watch, how long have you been using Facebook Messenger, how long have you been using WhatsApp, Mail. Who do you chat with, how long do you chat with, what kind of chat do you use, who are on your contact list, who do you message, who do you call, how long do you talk, what do you shop for? You like to take pictures, not videos. Do not like to send voice messages text messages.
This information about you is your metadata.
Anyone who has this information about you will be able to control you if they want to. He knows you better than you do. He knows what your mentality is, what your personality is, what your religious mentality is, what your political mentality is, what your personal thoughts are, what you like, what you dislike. He will know everything. You will know better than you.
When this information goes to the government, it will know whether you are its political opponent or its cause of loss.
If this information goes to a foreign intelligence agency, it will know if you will ever be a threat to its interests. Or if you don't listen to him, how can you persuade him to listen?
Even then many will come and say, I don't need to know so much. I have nothing to hide.
The next time you say I have nothing to hide, you will attach your Facebook ID, mail ID and password with that comment.
Only then will we understand that your words are true.
Now let's see who collects the most metadata.
Who is spying on you all the time?
Three organizations spying on you the most.
Apple, Google, Facebook.
They are spying on you in various ways. Collects your metadata. Facebook collects your metadata with the help of its Facebook app, Messenger, WhatsApp, and Instagram.
Google collects its GApps, Maps, Google Photos, Chrome.
You can prevent them in many ways if you want.
Encrypted mail, such as Proton Mail, and by using an encrypted messaging app, you no longer let them read your mail or chat. They don't know what you're talking about. By using the Secure Browser, you are not allowed to get the information about what you are searching for and what you are reading.
In this way, you can prevent them from getting their metadata into their hands.
I will write the details again.
Your data is YOUR data!
Translation(Bangla):-