The Internet is arranged so that remote materials do not always disappear without a trace. Any of your posts on social networks may find yourself in the archives. Here with what information you need to be especially careful when publishing it.
Documents. Do not photograph and do not post pictures of passports, bank cards, tickets: scammers can easily use all this.
Phone and address. Often the phone number is the key to restoring access to different accounts. If possible, do not report your address or geolocation on social networks.
Habits and personal life. There are cases when pictures from human social networks were on dubious sites.

Working materials. There are stories on the network when people shared screenshots or photos related to work, and they were fired for it. So be careful.
Old posts. Employers often look at the social networks of candidates, and famous people can memorize their jokes or posts of ten years ago. So it is better to manage all this yourself and delete what can harm you.