Pepijn van der S., from the Netherlands, was arrested on suspicion of being a leader of the hacker group ShinyHunters. He had previously been an ethical hacker and helped others remain on the legal path. His arrest prompted discussion in the hacker community about how tempting criminal activity can be for ethical hackers. Ethical hacker Koen Candlesticks said that after breaking into NOS systems earlier in the year and publishing information about it online, he received several questionable proposals in his direct messages. Barry van Kampen of the ethical hacker collective DIVD, who had got to know Van der S., called for more attention to the issue in education.