Editing Chaos Computer Club (section)

=== BTX-Hack ===
The CCC became world-famous in 1984 when they drew public attention to the security flaws of the German [[Bildschirmtext]] computer network by causing it to debit [[Deutsche Mark|DM]] 134,000 ({{Inflation|DE|134000|1984|fmt=eq|cursign=€|r=-2}}) in a Hamburg bank in favor of the club. The money was returned the next day in front of the press. Prior to the incident, the system provider had failed to react to proof of the security flaw provided by the CCC, claiming to the public that their system was safe. Bildschirmtext was the biggest commercially available online system targeted at the general public in its region at that time, run and heavily advertised by the German telecommunications agency [[Deutsche Bundespost]] which also strove to keep up-to-date alternatives out of the market.<ref>{{cite web
| url=https://www.sfgate.com/business/article/Hacker-remembered-as-computer-age-hero-Wau-2890557.php
| title=Hacker remembered as computer age hero / Wau Holland fought to free information
| date= 2001-08-13
| website=SFGate
| access-date=2019-04-19
| language=en-US
}}</ref>