Hello we are you bank. You need to give us your bank details as you have been hacked. We can sort the problem out as long as you give us the information.
This is bob's house. Inside his house he has lots of electronics and doesn't know much about cyber crime and how to combat it.
One day bob was on his phone when he got an email from his bank saying that he had to call them and they would sort the problem out...
Bob gave the the two blokes his credit card information as his card had been hacked but then the man said that he had actually taken the money and then put the phone down. Bob started to cry.
Meanwhile the hackers have taken bob's credit card details and have taken a lot of money from him!
Bob quickley grabs his phone and searches up how to combat cyber crime. He learnt that he needed an anti virus and should never trust any email even if it looked completely real. This was called phishing.
Bob runs to the bank and they tell him a lot of useful information and even manage to get the money back from the hackers. Bob was forever great-fall and from then on he never opened an email and added anti virus to all of his devices so that he could be safe online.