South Korea's controversial National Security Law criminalizes "anti-state" acts and forbids citizens from supporting the North in any context. But because Lee didn't retweet any posts, he was found not guilty of sharing or distributing North Korean content and was acquitted, The Guardian reports.
But even if his Twitter profile didn't land him behind bars, his personal blog did. The Korea Times reports Lee was sentenced him to a year in jail anyway for praising the North on his blog years ago.
Human rights groups and other critics have pointed out that these South Korean "security" measures are simply a way to censor citizens. The National Security Law "continues to be used as a tool to attempt to silence dissent, and to harass and arbitrarily prosecute individuals and civil society organizations who are peacefully exercising their rights to freedom of expression, opinion and association," argued Amnesty International in a 2012 report.
Tensions are running high again between North and South Korea.
South Korea recently blasted its popular K-pop music across the border into North Korea, where such fun is prohibited.