Social media & online storage

Peter is married and has two children. He is very active on social media, he regularly shares moments of his life and family memories. He also uses online storage services to store his photos, important documents and personal data.

However, Peter never really thought about what would happen to his accounts and digital data after he passes away. Like many of us, the question on his mind is:

What will happen to my profiles, photos and personal information?
Who will be able to access it?
Will my loved ones know where to look for?