Blurring or mosaicing is not very secure at all [1]. To be more safe block out sensitive information with solid black. (Just remember to not leak any informatio

Blurring or mosaicing is not very secure at all [1]. To be more safe block out sensitive information with solid black. (Just remember to not leak any information in the metadata, like an embedded thumbnail.) [1]: https://dheera.net/projects/blur https://dheera.net/projects/blur