"Private users are obligated to check whether their wireless connection is adequately secured to the danger of unauthorized third parties abusing it to commit copyright violation," reads the court decision.
With that being said, the court did say the users were not responsible for the illegal content downloaded by those accessing their unsecured connections.
Additionally, the court said users would only be expected to add a password when they first set up their router, and not need to constantly update to the latest protections as they become available.
The ruling followed a lawsuit filed by a musician who sued an individual user for illegally downloading his music. The user proved he was away on vacation when the music was downloaded, but did admit he had unsecured Wi-Fi.