I work for one of the ISPs in question as an Analyst and work is in progress to stop the storing of certain data after a certain time period.
The main reason for holding call data is for billing purposes, no e-mail information has ever been stored (other than in customer's own inboxes and sent items in their e-mail accounts). All browsing data is anonymised and only used for optimisation purposes.
Hundreds of thousands of pounds are spent annually on data storage, it’s welcoming that there is now a reason to reduce the amount of useless data we hold.
The main reason for holding call data is for billing purposes, no e-mail information has ever been stored (other than in customer's own inboxes and sent items in their e-mail accounts). All browsing data is anonymised and only used for optimisation purposes.
Hundreds of thousands of pounds are spent annually on data storage, it’s welcoming that there is now a reason to reduce the amount of useless data we hold.