1989

The Germans and the KGB

In the first cyberespionage case to make international headlines, hackers in West Germany (loosely affiliated with the Chaos Computer Club) are arrested for breaking into U.S. government and corporate computers and selling operating-system source code to the Soviet KGB.
Three of them are turned in by two fellow hacker spies, and a fourth suspected hacker commits suicide when his possible role in the plan is publicized. Because the information stolen is not classified, the hackers are fined and sentenced to probation.
In a separate incident, a hacker is arrested who calls himself The Mentor. He publishes a now-famous treatise that comes to be known as the Hacker's Manifesto. The piece, a defense of hacker antics, begins, "My crime is that of curiosity... I am a hacker, and this is my manifesto. You may stop this individual, but you can't stop us all."