The web site of Swedish union organisation LO was hacked on the morning of New Year's Day.
The whole appearance of the site was changed, and instead of text about the role of unions, readers were informed that during 2007 LO would "continue the fight to ensure that everyone gets the same abysmal salary".
Using white text on a black background, the hackers went on to write that the membership fee would "go directly to defaming small businesses".
The LO web site was still not accessible early on Monday evening.
