Facebook secret files contain data of all its users and their activities, the reason why this is unknown to most people is that people hardly read terms and conditions, it is written clearly in Facebook terms and conditions that it collects all your activities. Your files are gotten from activity log and your activity log contains your checked-in locations, the details of your transaction on Facebook pay, your chats history, details of contacts, IP address linked to your device and search history too.
Every day millions of people chat on Facebook, read news, watch videos, post videos and images and do a lot of things, but it is known to only few that Facebook monitors all of its users activities, every post you like, every comment you make, every post you send, every message you send on both Facebook chat and Facebook messenger is monitored and known by Facebook, they gather all these files and store them in a Facebook secret files.
Facebook secret files are obtained from Facebook activity log, you can view and manage your Facebook activity log with the following steps
You can use the filter option to search for a specific activity. Your activity log can only be seen by you, your Facebook friends can’t have access to your Facebook activity log.
ALSO READ- Facebook Dating Features & Profiles
When you delete your Facebook activity log it doesn’t mean that your Facebook secret files will get automatically deleted too, notwithstanding, you can use the following steps to delete Facebook activity log
With the steps above you’d have successfully deleted entry from your activity log, you can repeat the steps to delete more entries.