George Smyth, 18, from Newport in Shropshire was last seen in the Bucegi Mountains, on 23 November.
For four days, dozens of Romanian hospitals went offline, as cyber-experts sought to defeat the hackers.
Madalin IIinca, 34, who also faces two counts of sexual assault, is remanded in custody.
Head coach Craig Bellamy says Wales need to significantly improve following their 2-1 friendly defeat by Romania in Bucharest.
Watch the best of the action as Romania defeat Wales 2-1 in Bucharest.
Wales travel to Bucharest to face Romania on Saturday for the first time since their World Cup qualifying defeat in 1992.
Head coach Craig Bellamy wants Wales team to try to dominate in Saturday's friendly against Romania in Bucharest.
Craig Bellamy recalls the impact Romania icon Gheorghe Hagi had on his beloved Wales when he was a schoolboy as he bids to improve his side's miserable record in away friendlies.
The men are sentenced to 47 months each for stealing the 2,500-year-old Romanian Coțofenești helmet.
