Stop using their services like social media and some of their apps that requires you to put your personal data and information. Thus puts you to vulnerability of data leakage and leads to compromised privacy. Also avoid using cloud service from these tech giants, only time will tell if they could consistently sustain their data protection for their users or have security problems in the future.
Everyone is now conscious about privacy and this is a good sign in 21st century. Big tech giants like Facebook, Amazon, Google have made substantial amount of money by using the data of users selling those data for advertising, without the consent of the user. The user also rarely sees any direct personal benefit of his data. but gone are those days and this is a new ear which is setting in where the tech companies also understand that they have to share the profit with the user for using their data. But why to leave this in the hand of corporate, it should be a choice of the user.
A user can prevent corporate's invasion to his data privacy in the following ways:-
(1) Changing privacy setting is one of the way, but often privacy settings are hard to find and even harder to change, particularly if you want the full functionality of a site or an app. However privacy setting is a false trick by the tech firms, who try to create an illusion of control, but the reality is only allowing you to make changes the companies allow , while they retain overall control.
(2) Opting out off the unnecessary stuff is yet another way but it may lead to a social disconnect considering the fact that you are 21st century 4th generation creature. So opting out wisely will help and you need to be wisely selective. Going offline is neither realistic nor desirable. So deleting some social media accounts and, for instance, not logging into open Wi-Fi will limit your exposure.
(3) Using add-ons can help maintain some of your data privacy. You can use ad blockers to stop stop most third-party tracking which will help in reducing creepy targeted ads, speeding up your browsing and slowing down corporate profits from your data. Private browsing windows and VPNs can stop cookies getting in and location data leaking out.
(4) Be vocal in your society and increase awareness of data privacy in your locality and also use the power of social media and try to attract the attention of people of your country. Sign e-petition and send that to the ministry and govt authorities to put up legislation that strictly respects the user's data privacy. It is very well possible to include it as an election agenda and I am sure the 4th generation voter will come forward to protect and strengthen this cause. So use your voting rights and electoral power.
(5) Finally demand some monetary benefits from the Big Tech corporates who use your data. With the essence of blockchain technology, this is slowly setting up a new trend nowadays. The idea of redistributing corporate profits to tech users is gaining ground. Facebook co-founder Chris Hughes suggested implementing a data dividend, a share of profits to users whose data were sold for advertising revenue. A more complex, but more realistic solution involves receiving credits in exchange for data. This is definitely a free-market solution to the privacy-profit problem. The sooner Big Tech Corporate realize this, the better it will be for the corporates and the user will also.
Change your browser.
Google is tracking your every move and then, to make matters worse, selling on that information to the highest bidder. There is a new browser built by the guys that built firefox that claims to stop all this. It blocks spam adverts and even gives you the option to earn cryptocurrency by looking at adverts. You can choose the frequency of these and even turn them off and on as you see fit. It only uses trackers to create an advertising profile for you and these details are not shared with anyone so no more third party trackers.
Install a VPN
what is it? a virtual private network. Basically it allows you to create a secure connection to the internet and shields your browsing activity from outside sources. It will also allow you to access restricted content in your country such a torrent sites/ cable channels etc not normally available to you.
Invest in decent anti virus.
I would suggest something like Bitdefender which has won countless awards for it's ability to identify and restrict all sorts of internet nasties. Make sure you run a full virus check on your computer on a regular basis to make sure you have no malware, Trojans or any other malicious software that can track and export your information to others.
Don't sign up for all sorts of stuff on the internet
People have a tendency to sign up for shops, websites, blogs, social media etc without giving any real thought to who is checking this information or whether it is being sold on to interested parties. restrict your online shopping to a few reliable sources and make sure to check or uncheck the boxes that allow them to sell your data if this is a legal requirement in your country as it is now in many.
Don't post private information on social media.
The reality is that when you punch in to your social media that you have been at said location that someone else somewhere is receiving that information and further adding it to build a profile of you as a consumer. Never post photos of yourself whilst you are on holiday. It might not do much for big tech companies but it pens you to being burgled, you don't want unsavoury characters knowing you are away from your home for an extended period of time. If you must post these then do so upon your return.
Go live in a cave deep in the forest with no electricity supply