1800 954 266. This number appeared on a dialogue as part of a browser lock on a Microsoft computer whilst using Google Chrome. Whilst browsing the internet, the browser was locked with a page that looked very convincingly like a Microsoft Support page. The number was flashing on the screen with a message saying if we call the number a Microsoft Technician will help us to unlock the computer. The message on the screen also referred to the WannaCry ransomware and warned that if we tried to shut down the computer, the ransomware would be activated.
Clearly the phone number is a scam.
We have since used task manager to shut down the browser and are running virus scanning software to check that no malware was installed. As the previous comment states - if this happens to you. Don't call the number, just shut the browser down, run your anti virus software and then clear your cache when you run the browser again. Most importantly - don't panic!

1800 954 266 : Re-routed numbers to a nasty and sophisticated call centre based in India that pretends to be working as or for Microsoft support team.( Apple computers are an easy target). They are FAKE, FAKE, FAKE. Those scums are installing malwares and viruses from popups or with bundles software as Adobe Flash. More importantly, Adult sites are 98% to be found as their favourite way of passing their viruses (eg: " DepFile " as host files). Your internet browser suddenly freeze and your computer is being frozen. Best way is to shut your computer down ( by pressing power button for 20-30 to seconds ...or, Press ESC continuously for 10-15 seconds ...or to make sure, unplug Your computer). Fear and stress will take over with messages saying that your computer has had a virus attack. Restart with a clean browser cache and a run of a antivirus if you have one. Talk to someone (to your local computer guy) if you are not reassured or still in distress.This is a free phone call number, that’s targeting Australian audience. Note that nothing has changed in your computer system but check if some extensions had been added to your browser.If you do a lot of surfing the net, always run Task Manager that can stop any further damage. Do not let those curry scumbags win.
CALL YOUR BANK, CANCEL YOUR TRANSACTION.
https://discussions.apple.com/docs/DOC-8771
http://www.hawkesburygazette.com.au/story/4587783/after-paying-microsoft-499-jason-realised-hed-been-scammed/?cs=12

Hi, just got the number to as a pop up (separate window) and i saw the 1800 number and knew it would be fake. i also looked at the layout and way the page was made, convincing but not enough... Microsoft don't have flashing numbers. and the url wasn't a Microsoft one either, anyhow thanks for the help.

Luk.H from Australia

I just got that spam on my computer and had to call them.
First I was soo freaken scared as they kept saying my device is stolen by some "bad people" lol, and they will get access to our other devices at home and if I don't let them fix the issue, all outlr devices will stop working and we can never fix it and that was all because I just opened a website! So it didn't make sense to me and once he talked about a fee to fix this issue I was so sure that there is something wrong, I was lucky I shut the phone and saw the first comment about them being fake!
But unfortunately when I was talking to them on the phone, they got access to my computer screen and I don't know if that's gonna cause me trouble or not ??