Founded on this day in the offices of the West Berlin newspaper Die Tageszeigtung (TAZ) by journalist and information security advocate Wau Holland in 1981,
Chaos Computer Club is Europe’s largest association of white-hat hackers was established with the mandate to champion freedom of information worldwide, transparency in government and business practices and universal access to digital information. Through its hacktivism and penetration-testing, it has exposed several weaknesses and structural shortcomings that undermine privacy and user rights and it often deferred to as an expert witness for German and EU legislation and court filings, informing policy and openly criticizing decisions that fail to redress concerns for public-welfare.
Their activities rose to prominence first in 1984 when exposing the security flaws of teletext (Bildschirmtext, see also
here and
here), arranging a large transfer of funds from a bank to the club’s account. More recently, they demonstrated that inherent insecurity of biometrics by obtaining and publishing the fingerprints of the Interior Minister (
lifted off of a water glass) in 2008. The group hosts the annual Chaos Communication Congress, originally hosted in Hamburg but since 2017 at the Leipzig Trade Fair Grounds (Leipzigermesse) in addition to retreats, camps and workshops to supplement its media outreach. The pictured flag (Pesthörnchen, Datenpirat—a variant on the federal postal service logo, indicting their careless custody of customer data) is from a local chapter.
Founded on this day in the offices of the West Berlin newspaper Die Tageszeigtung (TAZ) by journalist and information security advocate Wau Holland in 1981, Chaos Computer Club is Europe’s largest association of white-hat hackers was established with the mandate to champion freedom of information worldwide, transparency in government and business practices and universal access to digital information. Through its hacktivism and penetration-testing, it has exposed several weaknesses and structural shortcomings that undermine privacy and user rights and it often deferred to as an expert witness for German and EU legislation and court filings, informing policy and openly criticizing decisions that fail to redress concerns for public-welfare. 
Their activities rose to prominence first in 1984 when exposing the security flaws of teletext (Bildschirmtext, see also here and here), arranging a large transfer of funds from a bank to the club’s account. More recently, they demonstrated that inherent insecurity of biometrics by obtaining and publishing the fingerprints of the Interior Minister (lifted off of a water glass) in 2008. The group hosts the annual Chaos Communication Congress, originally hosted in Hamburg but since 2017 at the Leipzig Trade Fair Grounds (Leipzigermesse) in addition to retreats, camps and workshops to supplement its media outreach. The pictured flag (Pesthörnchen, Datenpirat—a variant on the federal postal service logo, indicting their careless custody of customer data) is from a local chapter.