Computer-Bild, 12/2002, p. 6  (translated from German)

Security Service

User who would like to avoid updating their anti-virus programs again and again can now have all data they receive from the internet checked by a computer of the Nutzwerk company. The "SaferSurf" service works with the most up-to-date anti-virus programs. The virus protection for internet and electronic mail is available from 1 Euro per month.