Can computers infect each other from within my network?

Jeanette from Royal Oak, MI

Episode 1069 (35:58)

Network

Jeanette's son's computer was hacked and she's concerned that her Mac computers will be infected if he connects it to her network. Leo says that she should go into the security system preferences and turn on the computer firewall. That will protect her individual computers inside her network. What about her iPad? Leo says that she doesn't really have to worry about the tablet getting infected. Nobody is writing viruses that can infect an iPad from a Windows PC.