A California man has been arrested for hacking onto a West Point website, along with thousands of other government and business sites.

The Department of Justice says 41-year-old Billy Ribiero Anderson is in custody. The DOJ says Anderson used the pseudonym “AlfabetoVirtual " to hack onto the "Combating Terrorism Center" on the West Point website. An investigating FBI agent says he found Anderson's identity, in part, with his connection to a YouTube and Instagram account with a similar pseudonym.

They say the hacking for all these websites happened in 2015 and 2016. According to a local cybersecurity expert, the alleged hacker's boldness is what did him in.

"After they don't get caught for a long time, like most personalities, they start to get more and more brazen, they leave their name, they do things like this. Most of the hacks you won't know about," said TDR Technology Solutions CEO Don Beeler.

Anderson is facing two counts of computer fraud for causing damage to a protected computer, and one count computer fraud for unauthorized access to a US government computer.