She remained a regular till 201 and then returned in a recurring capacity in the final season.
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One culprit, 36-year-old Ryan Collins, was jailed for 18 months last year.
There is a variety of images now in the public domain, including Johnson posing semi-nude in a bathroom, topless with friends gathered around a swimming pool and also lying on a bed.
Vonn released an official statement â via a spokesperson - which appeared to back up the suspicion that celebrities' personal online accounts were being hacked.
She became a series regular on Season 4.