CLODO began in 1980 in protest against increasing computerized
surveillance by national governments and fears of increased oppression as computerization advanced. In May 1980, CLODO perpetrated an
arson attack against International Computers Limited. In August 1980, CLODO carried out two failed attacks against CII Honeywell Bull's office in
Louveciennes. The first attack involved a 5
kg (11 lb) explosive that failed due to a faulty
detonator and the second attempt was
defused prior to
detonation. In March 1981, an
IBM computer terminal at the
Banque Populaire building in
Toulouse was vandalized. While CLODO did not claim the attack, the newspaper
Le Matin de Paris stated the attack was "reminiscent of the habits and customs of the deceased CLODO". A 1998 investigation of CLODO in ''Notes & études de l'Institut de criminologie de Paris'' did not attribute this attack to them. in January 1983, CLODO returned, detonating three explosive charges at the Computer Center of the Prefecture of
Haute-Garonne. This resulted in 30 million
francs in damages. In October 1983, CLODO set fire to the offices of U.S. computer manufacturer
Sperry in protest of
Reagan's invasion of Grenada. In total, seven rooms of the building were damaged and "
Reagan attacks
Grenada, Sperry a multinational accomplice" was found written inside a
vandalized office. The attack was performed in the early morning and where members of CLODO broke into the building, piling flammable objects in an office before setting it on fire. The newspaper
La Dépêche commented that CLODO was using increasingly aggressive means of carrying out their attacks, and claimed the arson attack could have resulted in
casualties had a series of
display cases not contained the blaze. In October 1983, following the attack against Sperry-Univac, CLODO sent a manifesto disguised as an
interview to the French magazine
Terminal 19/84; detailing their ideology and future plans. CLODO vandalized the
National Cash Register building near Toulouse in December 1983, their last known attack. == Ideology ==