2021/05/20 Beware of support scams
We have received several inquiries like this.
"When browsing internet sites, screens such as "Access to this PC is blocked for security reasons" or "Windows was blocked due to suspicious activity" are displayed with alarm sounds."
Both will prompt you to call a phone number starting with 050, and when you call, you will be instructed to install remote control software or go to a convenience store to buy a prepaid card.
This is a support scam.
Virus infection warning and support phone number displayed
https://www.keishicho.metro.tokyo.jp/sodan/nettrouble/jirei/warning_screen.html
Click here for how to close the fake warning screen.
Microsoft :
https://news.microsoft.com/ja-jp/2021/01/29/210129-information/
If the display does not stop even after closing the browser, please contact SIT Center for Science Information.
How to contact us :
https://web.sic.shibaura-it.ac.jp/otoiawase?lang=en