BBC News
By John P. Mello Jnr.
Technology of Business reporter
image captionOscar Anaya's hacking skills kickstarted his career
One of Oscar Anaya's earliest successful hacks was in to a personal computer he shared with his older sister when he was 11 years old.
"My sister wanted to play some weird game on the computer and didn't want me to use it, so she locked it with a password," he says.
Undaunted, he began turning the machine off and on again, which led him to discover Safe Mode in Windows XP. "It allowed me to log in as the administrator of the personal computer and change the password," he says.