I am normally very careful but anyone can be caught, and I was, a few days ago; by a “Melvin Cooper” with no accent to match (though these days that is not a given).
Pretending to be from BT he told me to open two diagnostic tools on the PC (running ‘Windows 11’). They showed a formidable list of errors and several apparently-foreign URLs – all, he said, evidence of hackers!
Before I realised what was happening he had taken over the computer and loaded a programme called AnyDesk. I asked what it is. “It allows devices to be connected to your computer, such as your TV and smart-phone” . I have neither, though he would not have known, and he brushed off my protest that I do not need any such software.
By now I realised this was not right but he was intent on finishing the job – “only another half-hour” he said.
Ideal! “Sorry – I’ve an appointment and I’m already running late”!
That was on Monday morning. We left it with a promise he’d ring back on Tuesday morning. He did. Though he’d locked my computer so firmly I could not log on.
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My Little White Lie? To prevent him finishing his work before I made enquiries….
I rang BT to find yes, a scam; and advice to contact my back immediately. I’d already thought so and cancelled my credit-card by ‘phone. The credit-card lady was very helpful and rang the Debit Card department for me but after umpteen iterations of ghastly music I lost the will to live (nearly) and went into town to visit the bank branch. This showed my account was safe, but I still cancelled the debit-card and the on-line banking account I never use anyway. I was still sitting on the bank’s ‘phone, listening to more ghastly music, for over half-an-hour but the bank lady made me a cup of tea!
I should say I had also turned off the computer and modem at the mains, even before the real BT advised me to do that.
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“Mr Cooper” did ring back and I erupted at him. “Give me my computer back” , I yelled down the phone; with a few words not suitable for a family forum. He still insisted he was from BT and really was working to remove attacks! Eventually, when I would not play, he said fine, “they” (BT) would have to close my account. He must have realised I had eventually seen through his ruse.
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I had to have the computer recovered professionally, costing >£60 – luckily I could supply enough information for the repairer, a local, to contact the right people for the numerical key to unlock the hard-drive, encrypted by the manufacturer. He has passed the key numbers to me.
I learnt the EventViewer tool always shows hundreds of “errors” – the scammer uses it to frighten you. The foreign URLs? Goodness knows.
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At least I have not lost anything. If the worst had come to the worst, needing the whole PC re-formatting, I would have had to buy a new copy of Alibre and would have lost all my drawings by it, as I found I had not backed up all my files. (I have TurboCAD 19 on my spare, off-line PC which also holds copies of my hundreds of photos; but my external hard-drives will not work on Win-11 and it seems impossible to obtain drivers.)
AnyDesk… is genuine! It is made in Germany, as a tool primarily for businesses to create internal networks, but the more sophisticated criminals have latched onto it to control your computer from theirs.