What is the difference between phishing, spear-phishing and pharming?

Phishing campaigns don't target victims individually—they're sent to hundreds, sometimes thousands, of recipients. Spear phishing, in contrast, is highly targeted and targets a single individual. Hackers do this by pretending to know you. It's personal. A spear phishing attacker is after something in particular.

answer; i believe the answer is tls,transport layer security;