Some of the rules how to protect your business social media accounts apply to personal and group facebook profiles.
From my personal and professional experience, in a past few years the number of spamming, fishing attempts has increased across all digital and social media platforms. Ultimately more efficient anti spyware, anti malware, anti spamming cyber security tools are being developed and implemented but users who are not trained become more vulnerable.
Please read and share with your networks, family and children. Know people you share information with and don’t trust the phone verification. Google and Facebook don’t call unless you request it via your app.