Do you ever listen to anything people tell you?
When you go into CEX, where do you think all the items behind the glass comes from? Why do they sell second hand phones? Where do they get them from?
Their business is buying from you and selling it for more
What did you think happened?
They could sell to a dodgy hacker and then get my details
It’s not CEX I’m concerned about
I could get your details from you easier than this “hacker” you’re worried about.
Wipe the phone then sell it to CEX
Wipe the phone then sell it to Mazuma
Wipe the phone then sell it on eBay
Wipe the phone then sell it to anyone
Great.
Like I said I’ll give it a miss and keep the phone
How do you block someone?
You’ve started something now, @anon75400416. 
Start arguments and then delete comments 
They can, they have been doing it for ages
Do you use Facebook?
Nope
Won’t that knacker the warranty? 
Uses MSE forum though so there’s plenty of details to gather up from that
Just to deviate slightly but if you’re so concerned about “hackers” then it’s not a good idea to be using the same username over public forums, can build up a lot of knowledge about a person this way and also use clever social engineering tricks.
Well played, @Venomx 
New phone isn’t water resistant, if I’m out and about in rain then what ?
One of these ?
Have any of your other phones been damaged by walking in the rain?
With the greatest respect, @Venomx, these questions seem rather silly, considering how long you’ve probably been involved with phones and the like. 
Well the two iPhones were water resistant and the Samsung isn’t
I’ve used Music Magpie with no issues, I’m sure someone will object.