>This makes a lot of tricky things easier, but there are pitfalls. Some people are calling excessive data "toxic asset", due to the future risks of it causing

>This makes a lot of tricky things easier, but there are pitfalls. Some people are calling excessive data "toxic asset", due to the future risks of it causing unexpected breaches of privacy, damage to reputation, or other losses. We'll certainly develop standard technical means of handling that in due time, quite possibly ones based on cryptography. A common scenario at present: instead of trawling all backups & distributed stores to laboriously expunge every bit of deleted data, you could delete the relevant encryption keys - a small piece of data, a known quantity - rendering the encrypted data inert. This is particularly suited for systems that use WORM approach to backing up & distributing data.