Leo didn’t look for a "backdoor" in Facebook’s multi-billion dollar code. He looked for a backdoor in Maya’s habits. He knew she was obsessed with a local indie band, The Echoes .
The story of Leo and Maya is common. To make sure your account doesn't end up in someone's database, experts recommend: how to hack a facebook account
Before entering credentials, check the address bar. If it isn't facebook.com , it's a trap. Leo didn’t look for a "backdoor" in Facebook’s