We take all of the data that's stored on Facebook incredibly seriously. We have a dedicated team of professionals working to promote and protect the security of all data that our users store.
In that regard, we treat Facebook messages the same way we treat other data. We protect it; it's stored in dedicated data centres that have access controls, procedural controls, to prevent people from getting access to them.
While nothing is entirely secure on the Internet, we hope that people feel very confident in communicating on the platform.