Super Junior's Choi Siwon is known for being the social media prince of K-Pop (as voted by the international K-Pop community here on allkpop). Unfortunately, that means he became a bigger target for attack.

On January 28th, Siwon sent out a notice that his Twitter account had been hacked.

"Someone hacked my account," he wrote. "I know who did [it], but I'm not gonna tell. JUST DON'T DO THAT ANYMORE. Please."

Concerned fans immediately rallied to support Siwon, sending messages of sympathy and annoyance at this invasion of his privacy.

It seems that Siwon put it out of his mind, however, as he was determined to enjoy his final day in London. He shared a last photo from his trip, along with the words, "Last day in London. Regretful glance."

Getting hacked and having to deal with a security issue while abroad is definitely not a great way to end a trip, but hopefully Siwon managed to fully enjoy his UK vacation.