A Dutch tech news site [1] published the news on their site and got in contact with the ISP Snel:

The ISP told Tweakers that the account of Thomas White was blocked due to a security policy of the company. The customer let a deadline for verification accidentally expire and logged in through KVM. "Some KVM's generate a USB event when you use it to set up a connection to the server, this is what the customer just notified." - according to the ISP Snel. Meanwhile, the man's account is released.

[1] https://tweakers.net/nieuws/100388/beheerder-verliest-contro...