Spain's privacy watchdog has fined Google 900,000€ (£750,000) for breaking data protection laws in the country by not being clear to users about how their data is used.
Investigations into Google's use of personal information in cloud storage services are also ongoing in five other European countries, including France and Holland.
The issue stems from March 2012, when the internet giant introduced new mandatory terms of service to its users of its cloud services.
The new terms covered Youtube, Gmail and Google's search engine, and meant that individuals using these services had almost no control over their personal information.
The Spanish Agency for Data Protection said in a statement: "Inspections have shown that Google compiles personal information through close to one hundred services and products it offers in Spain, without providing in many cases the adequate information about the data that is being gathered, why it is gathered and without obtaining the consent of the owners."