@C_3PJoe wrote a 3 part series about #OSINT in @Forbes. This is a snippet of the third article, you can click HERE to learn about Facebook and the relevant vulnerabilities/exploitive opportunities it presents.
“Facebook allows friends, family, peers and even malicious actors deep insight into users' personal lives. Depending on the user's privacy settings, an attacker can gain access to a variety of information. No matter what privacy settings are in place, the user's profile picture and cover photo are always public.”