Complex sentence: When lifeloggers are logging, there will be somebody else in their pictures, and when they upload the data online, they somehow spill others privacy because it could show what a person did at a specific time and location.
Split into simpler sentences: When lifeloggers are logging, there will be somebody else in the pictures, and when they upload the data online. They somehow spill others privacy because it shows what a person did at a specific time and location.