Apple users 
are under threat from an iPhone scam that sees them urged to call a 
number and pay up to £50 or $80 for a fix - or all their details will be
 stolen, it can be revealed.
The
 issue - which appears to have been affecting users in the US for at 
least nine months but has since spread to Britain - sees a 'crash 
report' message pop up while users are on the Safari internet app.
The
 message appearing on the screen says: 'Warning iOS Crash Report - Due 
to a third party application in your phone, iOS crashed. Contact support
 for an immediate fix.'

Users are 
then told to call one of a list of numbers - '1-800-480-4170' in the US 
or '0800 279 6211' or '0800 652 4895' in the UK - and someone will then 
ask for their credit card details to make a payment to solve the issue.
The
 person answering the phone says a third party has been removing all 
their details from their handset - and this can only be stopped by 
paying up to £30 ($47) in Britain, or $80 (£51) in the US.
However, all they would be doing it handing their credit card details to the conmen. 
Instead,
 users have come up with a quick fix that involves placing your phone in
 'airplane' mode, which turns off all connections, clearing your website
 history and browsing data, and then reopening Safari
Apple users 
have discussed the issue - which can apparently be averted by disabling 
pop-up adverts on a device - on an official support forum which has had 
more than 110,000 views. 
Other
 users say the issue is caused by adverts infected with malicious code, 
causing the warning to appear on otherwise safe and respectable 
websites.
One user named Dizzer88 wrote on the forum last November: 'I too called the phone number to see what was going on. 
'It
 went straight on hold when I called - didn't ring - and then when 
someone came on the line, it was a woman who I could barely hear due to 
the noise in the background.
'She stated 
that my iOS crashed and was no longer something on my iPhone 5S and that
 a third party was at that time taking all my info off my phone - nice 
'scare tactic', eh?.
'She then said for $80 though she could reinstall iOS and just needed my credit card number -yeah, okay.
'So
 I said that was ridiculous as I had been using apps and my phone the 
whole time I was talking to her on speaker, and said I would call Apple 
Support directly. 
'She told me they would say the same thing about having to pay to have iOS reinstalled on my phone.
'I
 said 'I highly doubt it' and told her I wouldn't pay the money and that
 she was essentially full of c***. She then said - probably after 
realising I wasn't buying any of it – 'okay, ma'am' and hung up on me.'